jdm transmissions and my 90 gsx

[Eclipse90GSX]

hey guys, im wondering basically if a jdm tranny i go out and get from some place will bolt up to my 90 gsx? that means will it mate with my transfer case? or do i have the chnage my transfer case to a 91+ AND my shifter cables??

in short: is the 90 tranny and a jdm tranny the same? or is it similar to a 91+?

 

[nineD5_GS-T]

It will bolt up to your engine. The difference in the 1990 transmissions is the internals, not the bolt pattern. I believe the 90's have a different 1st gear design or something to that nature. I would send my trans to shep and get the basic rebuild for $890 rather than buying a mystery jdm trans.

 

[bmwracing_6]

I still have a jdm tranny in my car and I am trying to find the ring gear and pinion for it. It is a 3.909. The gear ratio for the US spec is 3.545. Each transmission has a code carved in the top of it. Here is a website to explain what gear ratio the jdm transmission you are seeking may have. www.totalperformance.co.nz/stuff/transcodes.htm