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auto to man swap dif question

Posted: Mon Oct 19, 2009 4:05 pm
by __TT__
So ive got a 94 tleg with the 4eat and a lsd in the rear. Ive searched around but cant find info on weather or not ill need to swap the rear diff due to man gearing differances, I dont want to lose my lsd. Am I blind or just retarded?

Re: auto to man swap dif question

Posted: Mon Oct 19, 2009 4:29 pm
by n2x4
__TT__ wrote:Am I blind or just retarded?
Retarded. :P

As long as the manual you swap to has the same 3.9 ratio, you'll be fine.

Posted: Tue Oct 20, 2009 4:40 am
by __TT__
lol ok so is the gear ratio printed somewhere on the man tranny

Posted: Tue Oct 20, 2009 9:47 am
by tturnpaw
There's a code on the bell housing you can post up here. If the gearing changes you can disassemble the differential and take the LSD carrier out and install in the new one.

Posted: Tue Oct 20, 2009 9:58 pm
by wtdash
Search on here, but I believe:


-Turbo 5-speeds are 3.9 (hydro)
- NA AWD 5-speeds are 4.11 (cable)
-NA FWD 5-speeds are 3.70

Found the link: http://legacycentral.org/library/transmission/intro.htm

Posted: Wed Oct 21, 2009 3:27 am
by n2x4
The transmission code chart on www.northursalia.com is also a good resource. I use it all the time when I need to decode a transmission.

Unfortunately, most rear differentials don't have markings or labels that tell you the gearing they have so you should try and find out what car it came from and figure it out that way.