96 AWD cracked trans

96 AWD cracked trans

Postby pauledude [OP] » February 26th 2009, 6:20am

I have a crack in the belhousing. The Flex Plate is hitting the dust shield. 96 AWD with a np231c T case swaped in.

Anyone have any ideas how this would happen? Had it hapen? Keep from hapening again?
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Re: 96 AWD cracked trans

Postby Matrixx » February 28th 2009, 8:09am

HI pauledude

Crack bellhousing? I have haven't heard of it no, until now. I know they do crack when they get slammed into gear when the motor is revved up high, that cracks them for sure. It could also be an alignment problem where the transmission is not resting on the rear transmission mount properly and all the weight of the transmission is on the bellhousing itself instead of the rear mount. Or it could be an alignment problem with the front shaft not matting up properly and putting a lot of side pressure on the transmission itself.

These are just off the wall thoughts, but something isn't right when you can crack the bellhousing like that, and that's for sure.
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Re: 96 AWD cracked trans

Postby astro355 » February 28th 2009, 8:57am

The only time I ever saw a broken transmission that caused a flexplate to make contact with the dust cover and/or transmission case was at the dragstrip. :text-worthless:
Diagnose 1st, never be a parts changer!

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Re: 96 AWD cracked trans

Postby pauledude [OP] » February 28th 2009, 5:54pm

Just an update. Got the trans ou. Pics later. Bellhousing broke of the trans. It may be the mounts on the rear. Last time I had a bellhousing break was on a toyota that I abused off road.

Broke all the studs off the xhause manifold. I cant get the cross member to release from the tortion bars. So it is still stuck up ther. and you cant take a 2wd 4l60 and just swap the adapter like the junkyard said I could so now I got to go back ther and return it. if they have another I am going to put it in. Or we may just weld it back up.

Also got to make new coolant lines since they broke getting them off. I'm thinking I should invest in all new mounts. motor and trans.
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Re: 96 AWD cracked trans

Postby pauledude [OP] » March 1st 2009, 7:19am

I finaly got a trans. The 2wd went back. I got a trans from a s10. needed to change the shift rod. should be putting it in tomorrow.
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Re: 96 AWD cracked trans

Postby Matrixx » March 1st 2009, 8:06am

Hmm, That's not the right transmission for that year pauledude. The bell housing should be a separate piece from the transmission bolted up to it (transmission). I may not be viewing the picture properly but It appears to be a one piece unit instead of two and open at the bottom which the new style 4L60Es aren't (their enclosed with a small inspection cover at the bottom).:) Just something to throw out your way.:)

Great picture though, Thanks.:)
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Re: 96 AWD cracked trans

Postby Positive P » March 1st 2009, 8:27am

I've had that happen on my van.
When I first got it, both motor mounts, and tranny mount were broke.
Didn't know till I got it home. So check those mounts.
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Re: 96 AWD cracked trans

Postby pauledude [OP] » March 9th 2009, 3:39am

its back on the road, running good. I have a leak now, I think comming from the lines into the trans. I will look at it tomorrow. I put the old trans in the shed. I guess it will hang out there till I decide what do do with it. Seems a shame to toss it out. Junk Yard didnt ake it as a core since it was broke. I have an extra adapter plate too. So if anyone is interested in converting thiers, and is in Las Vegas. Can it be done? But Im sure it would be a hard job puting my guts into your case.
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