How to do a 2+1 (3") AWD Lift...

How to do a 2+1 (3") AWD Lift...

Postby WimpTech [OP] » August 3rd 2017, 11:22pm

This lift thread applies to GEN2/ GEN3 AWD vans only (96-05).
See descriptions in BURGUNDY for GEN1 85-95 variants.

Foreword:
Before starting, I must give thanks to our Original Members and Pioneers, without who’s hard work and trial-n-error, NONE of this would be possible. Corsemoto, Akforceten, AstroWill, Lumpy, CargoCrawler, TurnNBurn, Mike at JOR, Gerald at OLV and countless others... thank you for your contribution.

FAQ

What is a 2+1 Lift?
We are talking about 2“ body lift pucks in front, plus 1“ of torsion preload to get to 3”+ overall lift. For the rear, the standard s10 spring upgrade will be used. This will result in the rear being about 1” higher than the front, so be advised.

Why the @#$#% would I do this?
As we all know, there are minimal suspension lift kits for these vans because they were never designed to be lifted. That being said, there are commonly 2 schools of thought to get that subframe up in the air… Body Spacers, Torsion Bar Preload, or a combination of both. Here is a side by side comparison:

Torsion Preload:
- A torsion lift (preloading springs) raises the front end by placing load on the torsion bars, using the adjustment bolts (that are actually designed for minor leveling adjustments), forcing the front end up. This reduces flexibly and travel since you are changing the starting point of those bars. This also results in decreased ride comfort for all the same reasons.
- Many lifts offer “Reindexed Torsion Keys”, which allow you to preload more therefore further reducing flexibility and making it ride like crap and cause accelerated wear on the front axles. You also would need to correct the angles in the front end by flipping the upper control arms ball joints and hope for the best.

Body Spacers:
- This is a plastic or machined 3” wide puck that you place between the rubber body mount and the subframe that lifts the body up and provides additional body clearance while not affecting the ride quality or suspension travel.
- This mod requires relocation of the emergency brake cable mount (new bracket, drill existing bracket or use spacers) and trimming of the lower fan shroud since the subframe and drivetrain will now be sitting lower.


2+1 Lift:
- This lift uses 2” tall body spacers and increasing torsion bar preload to provide 1” more lift, for a total of 3”.
- Adjustments of the torsion bar are not recommended for over ~1” as the front end components become misaligned. By using 2” blocks, we don’t have to install reindexed keys and therefore avoid all the nastiness associated therein.
- The required mods include the same from the standard/ OLV based 2” spacer lift, (relocation of brake cable mount and trimming of the lower fan shroud.
-NOTE: Since the camber and toe angles are affected, it is highly recommended you get your van aligned after significant torsion bar adjustments.

How Long will this take me?
Depends on your experience level. Fastest reported time so far was 5-6 hours, clocked in by GreatWhite and TurnNBurn. Longest was about 3 weeks... not mentioning any names (your secret is safe with us WinnieVan, not to fret).
Of course it all depends on how much other broken/ funky crap or rusted bolts you encounter on the way. Now that the team has done the research and test fitting, you should be able to tackle it in under 8 hours.

Do I need any special tools or skills to do this?
NOPE! Just what you see here, comfy place to work and a little muscle / patience.
Image

Is there a ton of mods required?
A few, nothing too complicated. In front, drill the e-brake bracket, trim the fan shroud. In the back, you will only need to relocate the brake hose bracket. We will walk you through it all, not to fret.

What's the difference between a 2+1 and 3+1 lift?
The 2+1 lift is waay less evasive and does not require as many mods as the 3+1 and is recommend for beginner to intermediate shade-tree mechanics. The total bill as determined by the WimpTech R&D Team would be under $400 and done in a day.... VERY busy day.

Do I need to do a U-Bolt n Plate conversion for the rear springs?
Well, it would appear that 2000+ models have a clam shell assembly that will accept the S10 springs without modification. It would be a good idea to measure what you have to see if you will have enough thread protrusion through the clam shell.

SHOPPING LIST:
- (Qty 2) Rear springs from S10, PN 22-687: http://www.sdtrucksprings.com/index.php ... ts_id=1430 ($170)
-OR-
Rear shackle extenders, see rear lift section for details. AirBagit / CTS
GEN1 (Fiberglass Leaf) PN:SHA-AS8400B Link: http://a.co/62phR2g
GEN2/3 (Steel Leaf) PN: SHA-AS8400A Link: http://a.co/0mGUrtO

- (Qty 6) 2" Tall x 3" Wide Body Lift Blocks: http://zoneoffroad.com/zone-offroad-pro ... -2in-/3296 ($24)
- (Qty 4) M12-1.75 x 130mm class 10.9 hex head bolts: Link: http://www.metricspecialties.com/
- (Qty 2) M14-2.0 x 130mm class 10.9 hex head bolts Link: http://www.metricspecialties.com/ ($30 all in plus shipping)
- (Qty 2) Extended Exhaust Hangers (http://a.co/1AKNozB) ($10)
- (Qty 2) Extended rear shocks of your choice (90’s Silverado is 2” longer but save the bushing from the old one and replace the fork type in the new shock with this one)
-OR-
Do the Lumpy shock mount mod... viewtopic.php?f=40&t=12783&start=160

GEN1 (85-95) VARIANT:
- (Qty 1) Longer steering coupler shaft from GEN2/3 RWD model (Junkyard or JOR) $10


Optional:
- (Qty 6) Rubber Body Mounts; Link: http://a.co/1hje2Mf (2 of the M14 mounts will have to be drilled larger, or just use your existing metal parts) $90
- (Qty 2) Bump stops
- Whenever replacing shocks, you should make sure all 4 match each other in terms of compression and return rates. Therefore, you should either match models or replace all 4. The fronts can still use the standard Astro AWD size.


TOOLS:
Sockets: 8,10,11,12,13,15,16,17,18,19,21mm
Wrenches: 16,18,21mm
Vice grips
Floor Jack w/ blocks as required
Tall Jack Stands
Beer (as required)

SUPPLIES:
Thread lock
Brake cleaner
WD40
Ratchet strap (opt)

JUNKYARD HARVESTING:
- When pulling the steering coupler shaft, get the rubber boot to go with it. This will save you the trouble of having to extend your existing boot. The shaft should be well greased and have almost no play when twisted. Bring a 8mm socket, 11mm wrench and pry bar.



FRONT INSTALL:


TIP: Proactively spray down all the bolts we are removing today with WD40 or similar. This will help the removal process and reduce down time screwing with rusty bolts

Prep:
Remove front bumper cover and subframe, as well as diagonal supports from cover ends.
Trim Lower Fan Shroud:
- Remove airbox w/ 8mm socket. Remove both upper and lower fan shrouds w/ 10mm socket. The bottom is tricky, be careful I snapped mine, then later just left it out all together).
- Trim the shroud until it resembles this:

Image

Image


Modify e-brake holder:
- Locate e-brake hanger bracket (near fuel filter, driver’s side).
Image

- Use vice grips or similar to secure rear cable just past the adjuster. Use 12mm wrench to loosen (add slack) to the adjuster by turning clockwise.

- Pull apart cables at this junction. Squeeze/ remove retainer clip. Remove 2x 13mm bolts and hanger.
Image


- Drill new hole farther up approx as shown below. Might make it better than this one… oops. Set aside for now.
Image

GEN1 (85-95) VARIANT:

Install Steering Coupler:
- Set steering wheel to straight forward; secure with bungee down to brake pedal to allow MINOR adjustment (key to ACC position). Thanks TurnNBurn for the tip!
- Remove 2x 13mm bolts and move fuse box to gain better access to top of boot and upper knuckle.
- Remove 4x 8mm screws on upper rubber boot, and pull lower boot off gear box (metal flex ring in boot).

Image

Image
(Boot removed)

- Remove 2x 11mm bolts, remove coupler
- Install new coupler with boots on (you can compress them together to get to the bolts), top end first, then align to teeth on gear box. Don’t let it move more than a tooth or 2 or your wheel will no longer be centered.
- Secure 2x 11mm bolts with Threadlock; secure boots.


Install Lift:
- Chock front and rear wheels or experience Darwinism first-hand.

- Remove front bumper cladding and metal sub-bumper (4x 15mm bolts)

- Remove body mount bolts x6. Front and rear are 18mm; middle are 21mm.

Image


To lift your van off the sub frame, you can use a few different methods:

1- Lift the front end up by the cross member, then install jack stands under the sides to hold the body up. Then, use the floor jack to lower the subframe down.

2- Use a Hi-lift jack or similar as shown here by ericstg:

Image

3- Position floor jack under front body approx as shown. If using a wood block like this, secure it to the jack to prevent tipping.

Image

- Carefully lift body up off sub frame in small steps. Check for fitment issue or tight wires/ hoses. Stop when you can fit the 2” block on top of the body isolator.
Darwin check... once lifted, use those Jack stands, blocks or what ever and don't rely on just the jack or risk proving Darwin right.
Note: If rubber is badly cracked, smushed or otherwise hosed then consider replacement.

Image
Image
***-NOTE: 3" pucks pictured here***

- If pucks are not perpendicular, use ratchet straps or similar on the front of the van to pull it into alignment.
- Install new bolts through isolators and pucks. Use threadlock and torque to spec, or as hard as you can, don’t be Wimpy

- Lower van, marvel in what you have accomplished… but not for too long, still got crap to do man!

- Reinstall e-brake bracket using new hole. Pry out tangs on the insert as required to secure. Reattach front cable to adjuster as shown in previous step. Adjust e-brake cable as required to ensure brakes aren’t dragging and work properly when pedal is depressed.
Image



REAR INSTALL:
For this mod, there are 2 options for rear lift... S10 leaf springs for about ~3.5" lift, or the adjustable rear shackle for 1-3" of lift.

Extended Shackle Method:

- Jack up rear end using common sense and as mentioned above to gain access. Hi-Lift jack with stands or if you have no budget, wood blocks n jack stands.
- Remove 2x 21mm rear shackle bolts, adjust jack to relive pressure on the bolts as required... don't drop van or axle on face.
- Using the appropriate shackle from the parts list, install extender into the top part first (loosely) as shown below. Then, swing it to meet the axle on the bottom most hole for 3" (or other as desired).

Image

- Tighten all bolts and secure with threadlock.

To correct pinion angle and center rear wheel:
- Move to the forward rear leaf hanger and jack/ support as appropriate.
- Remove 2x 21mm leaf bolts. and move out of the way.
- You can either remove the forward hangers to drill or if you are careful, drill in place. DRILL IT STRAIGHT or the gods will punish you.
- Find center of lower portion (down 1.5 inches down(hole to hole)and centered in the bracket (about 1 inch up from the very bottom) and drill hole as shown here:

Image

- Reinstall forward hanger/ spring into hanger and tighten with threadlock.



S10 Spring Method:

- Note configuration of current clam shells as shown below:
Image

- Jack up rear end using common sense and as mentioned above to gain access.
- Remove clam shell nuts 2x16mm, 2x 17mm (I believe), disassemble clam shell. Note: Check condition of upper and lower rubber pads; may need to be replaced. (Note: some folks have omitted the pad entirely, up to you)

- Lift rear end up to relieve pressure on springs. Remove 4x 21mm bolts, remove springs.

Here are the springs for comparison:

Image
Image

- Lift rear another ~4” to allow room for new springs. Install new springs, long side forward (`28” from bolt to centering stud). Tighten bolts with threadlock, torque to spec or as tight as you can get them.
TIP: Lay the springs on top of the axle, then slide in the front bolt first. Then, loosen the rear shackle and pivot them forward to align the rear bolt.

- Reassemble clam shell assembly loosely, don’t forget rubber pads and lock/ washers. Center everything around centering studs. Run down but don’t tighten nuts all the way just yet, might need to adjust things.
- Lower rear end slowly. Ensure rear axle is centered in wheel well (there is about ¼-1/2” adjustment in the clam shell), lift rear end and adjust as required.
- Apply thread lock and torque nuts to spec or just as tight as you can.
- Reposition rear brake line, bend bracket as required. NOTE: Make sure there is plenty of slack in this line to allow for suspension travel or the gods will punish you severely.
- Install new extended shocks of your choice (Note: Some say the stock ones can be used, might as well give it a shot)

Front Torsion Bar Adjustment:
- Locate Torsion bar adjustment bolts x2 in this area:
Image

Image

- Turn bolts clockwise to increase preload and raise front by ~1”. The amount of turns may vary, ~ 6-8 full turns.
- On a flat(ish) surface, measure between ground an wheel wells as required to ensure both sides are even and the desired height has been achieved.

Wrap Up

- Install bumper relocation brackets
WimpTech solution can be found here: viewtopic.php?f=11&t=100130
- Reinstall front bumper support or other bumper solution. Note: If reusing stock bumper cover, trimming will be required to ensure clearance with larger tires.

Go over everything:
- Bolts torqued down
- Wires and hoses have proper strain relief
- Tools removed
- No extra parts/ bolts, besides the 6 body mount bolts of course
- Plan on getting an alignment ASAP

Crack open frosty beverage of choice… you did it.

For additional information and background on lifts, see AstroWill's site here:
https://sites.google.com/site/astrosafa ... safari-van

-Revised 04/09/18- Wimptech
Last edited by WimpTech on August 4th 2017, 10:35pm, edited 3 times in total.
WimpTech - Precision Guesswork... Questionable Results.

My Van Build: viewtopic.php?f=127&t=103714
My Other Van: http://www.vcvc.org/showthread.php/3013 ... ersion-Van
Original Poster [OP]
User avatar
WimpTech
Firing on 4 Cylinders (L5)
Firing on 4 Cylinders (L5)
Years of Membership: WimpTech has been a member for 5 full yearsWimpTech has been a member for 5 full yearsWimpTech has been a member for 5 full yearsWimpTech has been a member for 5 full yearsWimpTech has been a member for 5 full years
Posts: 4403
Topics: 38
Images: 322
Joined: January 2016
Location: Texas!
Alias (AKA): =Wimpy=
Van Model Year: 2000
Van Make/Model: GMC Safari
Extra Info: AWD 3+1 Lift

  • Similar topics
    Replies
    Views
    Author

Re: How to do a 2+1 (3") Lift... by WimpTech

Postby WinnieVan » August 3rd 2017, 11:47pm

Wimpazz with another incredible thread.

:ty: :ty: :ty: :ty:

Love the Binford toolbox too! Tool Time!
Last edited by WinnieVan on August 4th 2017, 12:23am, edited 1 time in total.
User avatar
WinnieVan
Firing on 3 Cylinders (L3)
Firing on 3 Cylinders (L3)
Years of Membership: WinnieVan has been a member for 4 full yearsWinnieVan has been a member for 4 full yearsWinnieVan has been a member for 4 full yearsWinnieVan has been a member for 4 full years
Posts: 2328
Topics: 63
Images: 27
Joined: February 2017
Location: Berkeley, CA
Gender: Male
Alias (AKA):
Van Model Year: 2004
Van Make/Model: Chevrolet Astro
Extra Info: AWD

Re: How to do a 2+1 (3") Lift... by WimpTech

Postby MmusicmanMmusicman is online! » August 4th 2017, 12:02am

Wow... EXCELLENT post! :rockon:
Image
2000 Astro LS 4x4 | NP233 | 31" LT265/70R17 Tires | 8" LIFT | 10" TOTAL
92 Chevy Astro Cargo Shorty | V8-350
http://www.CruisinSouthFlorida.com
User avatar
MmusicmanMmusicman is online!
V8 Swap Achievement
V8 Swap Achievement
Firing on 8 Cylinders (L5)
Firing on 8 Cylinders (L5)
Years of Membership: Mmusicman has been a member for 7 full yearsMmusicman has been a member for 7 full yearsMmusicman has been a member for 7 full yearsMmusicman has been a member for 7 full yearsMmusicman has been a member for 7 full yearsMmusicman has been a member for 7 full yearsMmusicman has been a member for 7 full years
Posts: 4853
Topics: 73
Images: 49
Joined: June 2013
Location: Ft. Lauderdale, Florida
Gender: Male
Alias (AKA): Scott
Van Model Year: 2000
Van Make/Model: Chevrolet Astro
Extra Info: 2000 4x4 - 92 V8-350

Re: How to do a 2+1 (3") Lift... by WimpTech

Postby AstroWill » August 4th 2017, 12:04am

This should "stick" :)

Well done!

Trolls take away from productive work, best to ignore & go about your business. See: Dark Tetrad
Report terrorists and anyone inciting violence to FBI @ fbi.gov and 800-CALLFBI (225-5324)
User avatar
AstroWill
Technical Director
Technical Director
Firing on 8 Cylinders (L7)
Firing on 8 Cylinders (L7)
Years of Membership: AstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full years
Posts: 11626
Topics: 108
Images: 472
Joined: February 2009
Alias (AKA): Critical Thinking+Common Sense
Van Make/Model: Chevrolet Astro
Extra Info: I love peaches

Re: How to do a 2+1 (3") Lift... by WimpTech

Postby akforceten » August 4th 2017, 12:05am

great write up and thank you for the shout out
98638 100250
User avatar
akforceten
250k+ Miles
250k+ Miles
Firing on 6 Cylinders (L1)
Firing on 6 Cylinders (L1)
Years of Membership: akforceten has been a member for 10 full yearsakforceten has been a member for 10 full yearsakforceten has been a member for 10 full yearsakforceten has been a member for 10 full yearsakforceten has been a member for 10 full yearsakforceten has been a member for 10 full yearsakforceten has been a member for 10 full yearsakforceten has been a member for 10 full yearsakforceten has been a member for 10 full yearsakforceten has been a member for 10 full years
Posts: 614
Topics: 32
Images: 128
Joined: April 2010
Location: Bend Oregon
Gender: Male
Alias (AKA): akforceten
Van Model Year: 1995
Van Make/Model: GMC Safari
Extra Info: SLE 4x4 7 inch lift

Re: How to do a 2+1 (3") Lift... by WimpTech

Postby TurnNburn » August 4th 2017, 12:15am

Wait................. you can lift these things?!
2000 Astro- Camperized, bumpers, lifted, LS 5.3 V8, 4x4 T-case, Truetrac rear locker, 31x10.5x15 BFG KO2's
"Play stupid games, win stupid prizes"
Build thread- https://www.astrosafari.com/viewtopic.php?t=103066"
Image
User avatar
TurnNburn
V8 Swap Achievement
V8 Swap Achievement
Green Status (L4)
Green Status (L4)
Years of Membership: TurnNburn has been a member for 4 full yearsTurnNburn has been a member for 4 full yearsTurnNburn has been a member for 4 full yearsTurnNburn has been a member for 4 full years
Posts: 3033
Topics: 11
Images: 0
Joined: April 2016
Location: Bend, Or
Gender: Male
Alias (AKA): iGoogle
Van Model Year: 2000
Van Make/Model: Chevrolet Astro
Extra Info: 5.3 4x4 Overlander

Re: How to do a 2+1 (3") Lift... by WimpTech

Postby WimpTech [OP] » August 4th 2017, 9:13pm

Thanks guys and thanks for your input! Please let me know if I missed anything.
Thanks for the Sticky Will; hope it helps for years to come.
:rofl: TnB
WimpTech - Precision Guesswork... Questionable Results.

My Van Build: viewtopic.php?f=127&t=103714
My Other Van: http://www.vcvc.org/showthread.php/3013 ... ersion-Van
Original Poster [OP]
User avatar
WimpTech
Firing on 4 Cylinders (L5)
Firing on 4 Cylinders (L5)
Years of Membership: WimpTech has been a member for 5 full yearsWimpTech has been a member for 5 full yearsWimpTech has been a member for 5 full yearsWimpTech has been a member for 5 full yearsWimpTech has been a member for 5 full years
Posts: 4403
Topics: 38
Images: 322
Joined: January 2016
Location: Texas!
Alias (AKA): =Wimpy=
Van Model Year: 2000
Van Make/Model: GMC Safari
Extra Info: AWD 3+1 Lift

How to do a 2+1 (3") Lift... by WimpTech

Postby VanDan » August 7th 2017, 3:26pm

Literally planned to figure some variation on this but my leaf spring broke in the rear this weekend. It's my Daily driver so this is a huge issue. You couldn't have posted at a better time. Literally going acquire that entire shopping list and get this done within the week.
I have Couple questions.
Any thoughts on poly body mounts?
I just installed Bilsteins in the rear (46s) I have the front ones inside the van. Will these (rear) be ok until I can get 2" brackets for them? I've heard the Bilstein HD can deal with 2" of lift but with this I'll be around 3.

* also noticed the load on the shopping cart spring is 1350. The same site has two of the Astro springs with 3+1 rated higher. One set at 1410 and the HD at 1700.
I understand this may not lift as high (or at all?? but would the truck be more capable with these springs? I haul tools and swap out for kids occasionally. But I'm fairly often loaded up.

Sent from my iPhone using Tapatalk
2001 AWD Astro LT ~130k Spend 11Hr/day. Mobile office.
4"rear lift on HD S10 springs with OLV shackles set on small.
1" TKey and 2" pucks in front. Bilsteins 235/85R16 ProCompAT. Torq +2din head unit
User avatar
VanDan
Fueling (1/8 tank)
Fueling (1/8 tank)
Years of Membership: VanDan has been a member for 3 full yearsVanDan has been a member for 3 full yearsVanDan has been a member for 3 full years
Posts: 21
Topics: 1
Images: 2
Joined: June 2017
Location: Central NJ
Gender: Male
Alias (AKA):
Van Model Year: 2001
Van Make/Model: Chevrolet Astro
Extra Info: 2001 AWD Astro LT

Re: How to do a 2+1 (3") Lift... by WimpTech

Postby WimpTech [OP] » August 7th 2017, 4:56pm

Hey Dan, good questions, I'll do my best to answer them, remember I'm no mechanic!
About a year ago, another person here went with poly and was not happy because he felt they squeak and creek a bunch more, but that is subjective. Since I've only ever used natural rubber mounts, I can only speak to those. For me, the choice was very easy... cheap and at an average life of ~15 years, they will likely outlast the van at this point.

That's strange about the springs, I swear they were 1410 like Astros, wonder if it changed or if i'm going senile... either is possible. Personally I'm very happy with the load handling on them with my +100 or so pounds in the rear and haven't heard any complaints so far, and at only 60lb difference, I doubt it would even be noticeable. The stock Astro springs will not give you any lift but will likely make it sit a little higher than before since your old springs were probably sagged out.
There is also the standard 2" lift from OLV or Journey Offroad that has extended shackles which can be used with the stock springs.
WimpTech - Precision Guesswork... Questionable Results.

My Van Build: viewtopic.php?f=127&t=103714
My Other Van: http://www.vcvc.org/showthread.php/3013 ... ersion-Van
Original Poster [OP]
User avatar
WimpTech
Firing on 4 Cylinders (L5)
Firing on 4 Cylinders (L5)
Years of Membership: WimpTech has been a member for 5 full yearsWimpTech has been a member for 5 full yearsWimpTech has been a member for 5 full yearsWimpTech has been a member for 5 full yearsWimpTech has been a member for 5 full years
Posts: 4403
Topics: 38
Images: 322
Joined: January 2016
Location: Texas!
Alias (AKA): =Wimpy=
Van Model Year: 2000
Van Make/Model: GMC Safari
Extra Info: AWD 3+1 Lift

Re: How to do a 2+1 (3") Lift... by WimpTech

Postby 97cargocrawler » August 7th 2017, 5:40pm

I haven't heard my poly mounts make a peep, but I also lubricated them. Some folks think that was an unnecessary step.

Great write-up Wimp! Where's the link to the kit?
Image
User avatar
97cargocrawler
Firing on 8 Cylinders (L5)
Firing on 8 Cylinders (L5)
Years of Membership: 97cargocrawler has been a member for 9 full years97cargocrawler has been a member for 9 full years97cargocrawler has been a member for 9 full years97cargocrawler has been a member for 9 full years97cargocrawler has been a member for 9 full years97cargocrawler has been a member for 9 full years97cargocrawler has been a member for 9 full years97cargocrawler has been a member for 9 full years97cargocrawler has been a member for 9 full years
Posts: 4907
Topics: 42
Images: 1
Joined: December 2011
Location: Near Los Angeles, CA
Gender: Male
Alias (AKA): KING OF OVERKILL
Van Model Year: 1997
Van Make/Model: GMC Safari
Extra Info: 4.3L V6 RWD

Re: How to do a 2+1 (3") Lift... by WimpTech

Postby WimpTech [OP] » August 7th 2017, 6:01pm

:rofl:
It's next to Lumpy's Cheese Sandwich to Shower head adapter.
WimpTech - Precision Guesswork... Questionable Results.

My Van Build: viewtopic.php?f=127&t=103714
My Other Van: http://www.vcvc.org/showthread.php/3013 ... ersion-Van
Original Poster [OP]
User avatar
WimpTech
Firing on 4 Cylinders (L5)
Firing on 4 Cylinders (L5)
Years of Membership: WimpTech has been a member for 5 full yearsWimpTech has been a member for 5 full yearsWimpTech has been a member for 5 full yearsWimpTech has been a member for 5 full yearsWimpTech has been a member for 5 full years
Posts: 4403
Topics: 38
Images: 322
Joined: January 2016
Location: Texas!
Alias (AKA): =Wimpy=
Van Model Year: 2000
Van Make/Model: GMC Safari
Extra Info: AWD 3+1 Lift

Re: How to do a 2+1 (3") Lift... by WimpTech

Postby TurnNburn » August 7th 2017, 6:14pm

So I just did this weekend on a van Im fixing up to sell. And confirmed that 2000 and newer will fit the s10 rear springs as is and don't need to be modified with a u bolt flip kit like the 99 and old vans will.

Also, should be added to the original post since it shows the bumper off but doesn't say to take it off, that you need to remove the front bumper ( or at least the 2 10mm bolts on the very far ends that bolt to the fender, and the diagonal metal braces )prior to doing the body lift or you will rip them loose from the body.
Last edited by TurnNburn on August 7th 2017, 6:36pm, edited 1 time in total.
2000 Astro- Camperized, bumpers, lifted, LS 5.3 V8, 4x4 T-case, Truetrac rear locker, 31x10.5x15 BFG KO2's
"Play stupid games, win stupid prizes"
Build thread- https://www.astrosafari.com/viewtopic.php?t=103066"
Image
User avatar
TurnNburn
V8 Swap Achievement
V8 Swap Achievement
Green Status (L4)
Green Status (L4)
Years of Membership: TurnNburn has been a member for 4 full yearsTurnNburn has been a member for 4 full yearsTurnNburn has been a member for 4 full yearsTurnNburn has been a member for 4 full years
Posts: 3033
Topics: 11
Images: 0
Joined: April 2016
Location: Bend, Or
Gender: Male
Alias (AKA): iGoogle
Van Model Year: 2000
Van Make/Model: Chevrolet Astro
Extra Info: 5.3 4x4 Overlander

Re: How to do a 2+1 (3") Lift... by WimpTech

Postby 1lowcab » August 7th 2017, 6:31pm

I went rubber with my body mounts as I drive it daily (once it's back together :roll: ) and didn't want any extra road noise/vibration/harshness transmitted into the cabin then necessary. I wanted a smooth, quiet ride. I've replaced every mount on this van and have gone with OEM rubber on all of them.

I've built LOTS of little tuner cars (VW's & Audi's) and used poly mounts on them and didn't want that kind of ride for the van, gets real annoying on the freeway!
User avatar
1lowcab
Firing on 8 Cylinders (L3)
Firing on 8 Cylinders (L3)
Years of Membership: 1lowcab has been a member for 4 full years1lowcab has been a member for 4 full years1lowcab has been a member for 4 full years1lowcab has been a member for 4 full years
Posts: 2948
Topics: 58
Images: 165
Joined: April 2016
Location: OH
Gender: Male
Alias (AKA):

Re: How to do a 2+1 (3") Lift... by WimpTech

Postby VanDan » August 7th 2017, 6:40pm

I just grabbed the spring set from the shopping list above. I had plans to lift and plans for airbags. If I do this and stick to the plan I will get everything with more options on my ride quality. Also opted for the Rubber mounts. I was just yesterday looking through your poly ball joint/leaf bushing thread CC. Expecting to go poly in those areas. Have to grab the leaf bushings now actually. This write up made my day. Haha


Sent from my iPhone using Tapatalk
2001 AWD Astro LT ~130k Spend 11Hr/day. Mobile office.
4"rear lift on HD S10 springs with OLV shackles set on small.
1" TKey and 2" pucks in front. Bilsteins 235/85R16 ProCompAT. Torq +2din head unit
User avatar
VanDan
Fueling (1/8 tank)
Fueling (1/8 tank)
Years of Membership: VanDan has been a member for 3 full yearsVanDan has been a member for 3 full yearsVanDan has been a member for 3 full years
Posts: 21
Topics: 1
Images: 2
Joined: June 2017
Location: Central NJ
Gender: Male
Alias (AKA):
Van Model Year: 2001
Van Make/Model: Chevrolet Astro
Extra Info: 2001 AWD Astro LT

Re: How to do a 2+1 (3") Lift... by WimpTech

Postby WimpTech [OP] » August 7th 2017, 6:46pm

TurnNburn wrote:Also, should be added to the original post since it shows the bumper off but doesn't say to take it off, that you need to remove the front bumper ( or at least the 2 10mm bolts on the very far ends that bolt to the fender, and the diagonal metal braces )prior to doing the body lift or you will rip them loose from the body.


GREAT Catch, thanks! I will ask our friendly neighborhood Admins to add that step to both 2+1 and 3+1 lifts.
WimpTech - Precision Guesswork... Questionable Results.

My Van Build: viewtopic.php?f=127&t=103714
My Other Van: http://www.vcvc.org/showthread.php/3013 ... ersion-Van
Original Poster [OP]
User avatar
WimpTech
Firing on 4 Cylinders (L5)
Firing on 4 Cylinders (L5)
Years of Membership: WimpTech has been a member for 5 full yearsWimpTech has been a member for 5 full yearsWimpTech has been a member for 5 full yearsWimpTech has been a member for 5 full yearsWimpTech has been a member for 5 full years
Posts: 4403
Topics: 38
Images: 322
Joined: January 2016
Location: Texas!
Alias (AKA): =Wimpy=
Van Model Year: 2000
Van Make/Model: GMC Safari
Extra Info: AWD 3+1 Lift

Re: How to do a 2+1 (3") Lift... by WimpTech

Postby 97cargocrawler » August 7th 2017, 6:49pm

Lol. I wanna lift my van but I don't want it to ride harsh or squeak. Since this is a lift thread, those curious who do not fall into the manpussy category should be aware that poly body bushings will lift your van a pinch more, especially if you install them upside down.

Image

Image

Image

Image

Image
Image
User avatar
97cargocrawler
Firing on 8 Cylinders (L5)
Firing on 8 Cylinders (L5)
Years of Membership: 97cargocrawler has been a member for 9 full years97cargocrawler has been a member for 9 full years97cargocrawler has been a member for 9 full years97cargocrawler has been a member for 9 full years97cargocrawler has been a member for 9 full years97cargocrawler has been a member for 9 full years97cargocrawler has been a member for 9 full years97cargocrawler has been a member for 9 full years97cargocrawler has been a member for 9 full years
Posts: 4907
Topics: 42
Images: 1
Joined: December 2011
Location: Near Los Angeles, CA
Gender: Male
Alias (AKA): KING OF OVERKILL
Van Model Year: 1997
Van Make/Model: GMC Safari
Extra Info: 4.3L V6 RWD

Re: How to do a 2+1 (3") Lift... by WimpTech

Postby 1lowcab » August 7th 2017, 7:00pm

Lol. I wanna lift my van but I don't want it to ride harsh or squeak


Exactly, I sometimes put close to 200 miles a day on mine. Squeaks and harshness will make me want to leave it sitting in my driveway for decoration and take one of my other vehicles.
User avatar
1lowcab
Firing on 8 Cylinders (L3)
Firing on 8 Cylinders (L3)
Years of Membership: 1lowcab has been a member for 4 full years1lowcab has been a member for 4 full years1lowcab has been a member for 4 full years1lowcab has been a member for 4 full years
Posts: 2948
Topics: 58
Images: 165
Joined: April 2016
Location: OH
Gender: Male
Alias (AKA):

Re: How to do a 2+1 (3") Lift... by WimpTech

Postby VanDan » August 7th 2017, 7:23pm

My kids absolutely love riding with me. Comfort goes a long way when the wife also likes her own van. If mine were a bromobile like the 6 wranglers I've had through the years then it wouldn't be a no brainer to take mine. Been there done it. Rigid bikes and all. I'll take the comfortable AND the capable now. I'm a big fan of poly in just about all other suspension areas but wasn't sure about the body mounts. Mentioning mileage I'm at 150 a day but I drive into Brooklyn and it's like it's own special terrain. They just cut the asphalt my whole ride up Bay Ave. My ball joints needed changing and I'm hoping they hold out till I can grab the parts. This broken leaf has set off a chain of items that weren't up to bat just yet. Lol


Sent from my iPhone using Tapatalk
2001 AWD Astro LT ~130k Spend 11Hr/day. Mobile office.
4"rear lift on HD S10 springs with OLV shackles set on small.
1" TKey and 2" pucks in front. Bilsteins 235/85R16 ProCompAT. Torq +2din head unit
User avatar
VanDan
Fueling (1/8 tank)
Fueling (1/8 tank)
Years of Membership: VanDan has been a member for 3 full yearsVanDan has been a member for 3 full yearsVanDan has been a member for 3 full years
Posts: 21
Topics: 1
Images: 2
Joined: June 2017
Location: Central NJ
Gender: Male
Alias (AKA):
Van Model Year: 2001
Van Make/Model: Chevrolet Astro
Extra Info: 2001 AWD Astro LT

Re: How to do a 2+1 (3") Lift... by WimpTech

Postby chrstphr81620 » August 10th 2017, 2:34am

It's..... It's Beautiful!
1999 Astro AWD 4.3 "Fidel CastroVan"
Image
chrstphr81620
Fueling (5/8 tank)
Fueling (5/8 tank)
Years of Membership: chrstphr81620 has been a member for 4 full yearschrstphr81620 has been a member for 4 full yearschrstphr81620 has been a member for 4 full yearschrstphr81620 has been a member for 4 full years
Posts: 74
Topics: 8
Images: 66
Joined: August 2016
Gender: Male
Alias (AKA): Christopher
Van Model Year: 1999
Van Make/Model: Chevrolet Astro
Extra Info: LS 4.3L V6 AWD

Re: How to do a 2+1 (3") Lift... by WimpTech

Postby Vandy_B » August 24th 2017, 6:34pm

Yet another nice write-up Wimpy!

I can confirm some of the "afterthoughts" that some others raised. Poly bushings do indeed give just a little (maybe 1/2") more lift as they don't squish down like the rubber bushings do. Just means a little less adjustment needed with the torsion bars. I did not lubricate and I haven't had any squeak issues (at least not that I can tell...plenty of other squeaks and rattles...). I can also confirm that the with the S10 springs in the rear the stock Bilstein shocks work. I did not relocate the shock mounts etc. and I am not aware of any issues.

The one thing different that I've found is that my stock clamshells did NOT fit with the S10 springs. I ordered and have received the plates and U-bolts but haven't installed them yet. I just ghetto mounted the clamshells and have the all-to-familiar gap between the clamshell and the mounting bracket.

And as others pointed out...gotta take off the front bumper and use relocation brackets...or just do a cool mod to a Jeep rock-crawler bumper and fab a grill extension from some JY donor vans! :D
Vandy_B
Firing on 1 Cylinder (L1)
Firing on 1 Cylinder (L1)
Years of Membership: Vandy_B has been a member for 4 full yearsVandy_B has been a member for 4 full yearsVandy_B has been a member for 4 full yearsVandy_B has been a member for 4 full years
Posts: 135
Topics: 33
Images: 19
Joined: September 2016
Location: Olympia, WA
Gender: Male
Alias (AKA): andy
Van Model Year: 2003
Van Make/Model: Chevrolet Astro
Extra Info: 4.3L V6 AWD

Next

 
  • Related topics
    Replies
    Views
    Last post

Return to Lifted Suspension

It is currently March 4th 2021, 1:18pm

Lifted Suspension Forum
Lifted SuspensionLifted Suspension, 4x4, Leaf Springs, Lift Kits, Coils, Gas Shocks, Suspension Lift, Body Lift, Sport Utility, Off-Roading.
Moderator: chevy57bert
To create a new topic in Lifted Suspension, click this button:
Previous topic Next topic
Recent Image Attachments
Attached by:
Attached by: SportsBoy
SportsBoy
in Lifted Suspension
Views: 746
Comments: 28
Date: Feb 15 '21
Time: 3:20am
» Read last comment
Attached by:
Attached by: SportsBoy
SportsBoy
in Lifted Suspension
Views: 746
Comments: 28
Date: Feb 08 '21
Time: 2:46pm
» Read last comment
Attached by:
pmou
in Lifted Suspension
Views: 2493
Comments: 94
Date: Feb 05 '21
Time: 4:42pm
» Read last comment
Attached by:
pmou
in Lifted Suspension
Views: 2493
Comments: 94
Date: Feb 04 '21
Time: 6:47pm
» Read last comment
Attached by:
Attached by: icebrrg3rd
icebrrg3rd
in Lifted Suspension
Views: 746
Comments: 28
Date: Jan 22 '21
Time: 4:09am
» Read last comment
Sponsors

Who is online

Users browsing this forum: Google Adsense [Bot], JivaLasVegasJivaLasVegas is online! and 4 guests