Are they the same?
yah or nah?
The internals from 90-91 trannies to my understanding are NOT compatible with internals from 92+ trannies. However I will let somebody who has actually opened up a tranny to confirm this.
yah I know the 90 and 92 trannies are different with the diameter of the shaft, was just hoping maybe that they would work. I never opened up a 92+ tranny. all pre 91 trannies
richie, you are correct. they are NOT the same. 89-91 an d92+ b series trannies may look the same at 1st glance, but they are surprisingly different. Different shaft sizes, different tranny and clutch casings, completely different shift fork designs…
when i did my swap i tore down my 92 A1 tranny and my 92 gsr ys1 side by side. The synchros are different ( i had originally planned on putting the 3rd gear synchrofrom my A1 into the YS1).