I have a 79 cutlass supreme with a 350three speed automatic, and yesterday I had a friend of mine call me and tell me that he found a old 79 cutlass supreme around a abandoned house and got the owner to sell the car. Question is the tires are gone and the car is sunk into the ground, I talked to the owner and he said the car had a metric transmission as far as he remembrered, he thought he might be wrong though. I thought the metric trannys were in the v-6 engines and in the early 80's with the v-8s like the 307. Could he be right could that 79 with a 260 have a metric tranny? Any help would be appricated. I cannot get under the car to look, it is a three speed automatic that is all i can tell.
Thanks

 

The 'metric' tranny is the THM200; I had one of these in my late mom's Cutlass Supreme where I swapped the tranny 4 a THM350.

I'd prefer the THM2004R in place of the 200/200C...

 

Not that I'm aware of. It'd be a th350. unless it was swapped out. The metrics came out in the early 80's I thought.

 

My 79 Hurst Olds came with a 350 turbo. I wouldn't think Oldsmobile would just use install 350's in just one car, but it's possible.