Rotaryrockstar

Hey all! I am looking to do a transmission conversion from auto to 5 spd on a gsl...
I have found a gsl-se tranny, will this bolt up to a 12a engine? If not, what transmissions are compatible?
Thanx!

rx7passion

sure its compatable theres not any major differneces with the models. only a few cosmetic and a slightly difference gearing.

Rotaryrockstar

Awesome.. A new development has occured... This guy who is selling it, (it's in a yard) says that the previous owner of the vehicle had put a "brand new" engine in the car, everything was gone except for the block, so all I could see is that it said 13B... I am assuming that the engine of the GSL-SE is the same as any 86-88 13B right?
Ifso, does this mean that any 85gsl-se transmission, up through any 88 transmission will fit in on the 12a motor?
My fear is that, if the owner put an 89-91 13b in the first gen (I haven't learned if that is possible or not), will THAT tranny not be able to mate with a 12a?
I know this question is kinda convoluted, but I just really don't wanna tear everything apart to find out that they wont match...
I have done some reading and have learned that I will have to do some fashioning of materials to make the manual sit right in the previously automatic bay...
I'm just hoping there won't be any terrible surprises...
Thanx again!

onepointone

i hear all the trannies fit, so even if it is a s5 motor (89-91) it shouldnt matter.

bliffle

Don't know about 86+, but I put a GSL-SE transmission in my 83 GS and it's great. 5th is a little taller, and I like it.

b

MosesX605

Check out this page at Felix Miata's FAQ. It covers basically everything concerning transmission interchangeability.

http://members.ij.net/mrmazda/interc...html#TRANUSAGE