Hey guys, I was wondering if we could collect some information in this forum on the Corvair transmissions that were put into the Can-Am / Mirage.

I'm obviously very new to these cars. They run a four speed transaxle from a mid 60's Corvair, which has been flipped around to face the wrong way, and bolted onto the back of a Kelmark cast alluminium adapter/bellhousing (was this developed specifically for the Mirage?)

These have a pretty simple old-style clutch fork with a hydraulic slave bolted to the side of it, and the master cylinders likely vary a lot as the cars came with all kinds of pedal boxes.

But what do we know about the transmissions? What modifications were usually done to the transmissions?
I understand that Kelmark offered various aftermarket parts to improve the strength of the gearboxes?

Do we know what final drive ratios were available? Were these gearsets common with any other G.M. vehicles?

Are there are parts which are universal between different models of G.M. vehicles?

I think it makes sense to have this resource on our forum.