Looking for the diff-initive answer to the burning question, will any Q45 differential (90-05) fit my 1994 given the doner car does not have active suspension or TCS???

By the way, great site and ya'll are very knowledgeable.

only 90-96 Q.....

If you have TCS then you need a TCS differential which are not cheap or easy to find.

Also from 90 to mid 91 diff's will not work either as there is something a little different with them that has to be modified to work. To be on the safe side be sure it is from a 1992~1996 car and watch the TCS vs. non-TCS stuff. Better yet...buy one from one of the Q's being parted out in the classifieds or go to car-parts.com and you will find several available.

rsiwicki wrote:If you have TCS then you need a TCS differential which are not cheap or easy to find.

Also from 90 to mid 91 diff's will not work either as there is something a little different with them that has to be modified to work. To be on the safe side be sure it is from a 1992~1996 car and watch the TCS vs. non-TCS stuff. Better yet...buy one from one of the Q's being parted out in the classifieds or go to car-parts.com and you will find several available.

ahh yes thanks for bringing that up, i forgot about that!

Slim was able to swap a complete Q45 rear and axles in his 300ZX non-turbo. The 300ZX axles are a little shorter, but might work in the Q.

Beter yet, maybe someone could try to swap the entire rear subframe from a 300ZX non-turbo.

Jeff Williams wrote:Slim was able to swap a complete Q45 rear and axles in his 300ZX non-turbo. The 300ZX axles are a little shorter, but might work in the Q.

Beter yet, maybe someone could try to swap the entire rear subframe from a 300ZX non-turbo.

wont work, the subframe is a about 2in shorter..

elwesso wrote:
wont work, the subframe is a about 2in shorter..

wes, good info on the z32 na. what about full subframe from fy33 into g50?

i know i know-- i own both and should be the one to know, but i don't.

see the other thread, Jay... BTW the stuff that I said was mostly speculation based on deductive reasoning!!!

Jeff Williams wrote:Beter yet, maybe someone could try to swap the entire rear subframe from a 300ZX non-turbo.

Won't work. Been tried, it's too small.