It's time for everyones favorite game!!

So I picked up this tranny that was "rebuilt" not too long ago for my 12a blowthrough build, and well it was dark when I picked it up and didn't notice the ribbing on the bellhousing. and the fact that it's missing a sensor. So here's some pics.. it;s next to my original 81 12a trans for comparison. Length and shifter placement is the same, as well as trans mount location.....

So?

 

RuPaul!!

 

I was waiting for that..... thanks DF!

 

Not certain but I think that's a TII tranny.

 

your new trans is an S5 NA trans. if it were a T2 trans, which also has the ribbed bellhousing, it'll have dual drain plugs.

 

hmmm.... so should still work with a 12a starter and a 215mm clutch on a racing beat 8.5 lbs aluminum flywheel?

 

Yes it will work just fine.

 

i was going to so a repu or rx3 tranny for the cosmo 13b

 

the rx2/3/4/5 and turbo transmissions have a removable cover on the bottom, and a separate bellhousing

 

your right now i remeber that.
It cant be a t2 tranny they all have removable bell housings.
It has to be a pre 85 maybe even a 60's i would guess but they length maybe a station wagon like the rx3 with twin dizzy?
but i would lean twords that or repu.

 

huh? the one in the pic? its an FC na trans.

 

i thought all fc trannys had removable bell housings?

 

You will need to swap tailshafts.

 

fc turbo does. fc NA does not

 

well hey i learned something today!

 

thanks for all the reply's guys.... so here's the other interesting note. Obviously the bellhousings are different, which by most everyone's opinions would be an FC bellhousing. But that would mean that if this were an actual FC trans that the trans mount would be different, and well, they are identical. Also, the yoke that is in the back of it fits fine in 12a trans I pulled out.

So i'm wondering if this is an FC bellhousing swapped onto a 12a gear box? Kind of a weird thing to do don't you think?

 

So I sent a few pics to Robert at Rotary Shack and he seems to think it's either an early model trans (RX3 or the like) or possibly an early 12a turbo trans. Mostly due to the lack of (i think) the neutral safety switch mounted on the tailshaft just where the shifter tube goes into the dog box.

This new tranny just has a blind hole.... no threads or anything. Plus it's missing a few other sensors to be an FC trans, especially an S5. Any old-skoolers have any input?

 

100% the bellhousing is from an 87-92 Na rx7.

its possible someone put an FB tailhousing on it ...

 

The bellhousing is S5. The tail looks to be S4. The tail does not have the extrusion around it for the the internal harmonic balancer.

 

Wait...HUH?


Nevermind, I got it.... :-/