I have been looking for an OD transmission for my 3/4 ton that I plan to use for working. I have a 3 speed OD trans out of a 55 chevy car, (are factory truck OD's different?)but someone told me a T85 would be a better choice as it was a bit more heavy duty. So I did some research on it and was surprised to find out they didn't come in Chevrolets, according to one source anyway. Here is a link to the
Hemmings article It won't show you the whole thing if you're not a suscriber, but it has a little info. I have the hard copy around somewhere. I have a T5 I was tempted to use, but will save it for the next 1/2 ton I put together.