94 AWD rear axle ID# decode

[a7tl46]

Can someone ID this...... UTR C 010 1

[Matrixx]

Hi a7tl46

This information is on the old forum board:

old/ib/axleinfo.htm

It's at the bottom of that page.

[a7tl46]

Thanks good info. Leaves me confused though. On that link there is a pic of a G80 gov-loc and also a pic of a standard rear. My glove box code is G80 GT4, which I interperate as a 373 LSD. The pic of mine rear looks like the standard from that link. That code I posted is from a rear I'm looking to buy to replace mine. The UTR is a open instead of a posi on that list
Is limited slip the same as a posi, gov-loc, open, or standard?

[Matrixx]

Hi a7tl46

That's a limited slip (Gov Loc).
That's what Eaton calls their Limited Slip (Gov-Loc) It's not a true posi trac, no.
With an Open Diff. you wouldn't have all that extra hardware in the center as yours shows.

[a7tl46]

Thanks for clearing that up. The code on that replacement rear makes it an "open" unit. I assume I can't switch open for LSD, even though they both have 373's? Problem with mine is it isn't so "limited slip" under load

[Dean89]

You should have no problem switching, I just went from 3.73 open to 3.73 posi on mine a couple of weeks ago. Good luck.
edit: have you tried replacing the fluid, limited slip needs a friction modifier in the gear oil to work properly.

[a7tl46]

Yup.... changes out the fluid earlier this week. (in an earlier post). For the price I may just get the open and give it a shot. Then I can tear down my LSD and see whats- what. Can't have the van down and out for too long. My work horse.