65 classic 660 lead fuel additive questions

The heavy duty manual transmission option for the torque tube 6 cylinders was the T-86.

I get the T-85 and 86 confused sometime. There is a minor difference, can't recall what, but both were used and are about the same strength. Most of the OD models were T-85s, straight stick T-86, but I don't think that is the difference (could be... since OD models have a reverse lock-out feature). The HD V-8 three speed was the T-89, used behind 327s. The T-10 four speed is a T-89 with fourth gear where reverse was and reverse built into the output shaft housing. I think there was an OD version of the T-89 (same as there was for the T-96), but not sure from memory. The T-85 from a Ford will work also. Don't know if Ford used the T-85 as a straight three speed, but all the later model three speed OD trannys Ford used were T-85s, up through the mid 70s in trucks.

So the tranny you would need to keep the torque-tube is going to be hard to find, especially locally. If swapping the drivetrain you can fit anything in one of the big cars -- it's just the smaller ones that are tight. The 4.0L is the only relatively modern AMC derived engine. If putting that in post in the six cylinder forum, and search the 4.0L swap sub forum.  If you decide on another make drivetrain start a post in the Frankenrambler section for drivetrain questions, everything else in the respective forum (body and such not related to engine/trans/specific to those wiring).

65Classy wrote: I appreciate it you guys thanks for all the info. I'm most likely leaning toward a 4.0 swap I have a friend that has one I can have motor and trans and all just needs a head gasket. I'll post on the 4.0 section and Franken rambler if I need any advice on my swap. I still need some and things like a bumper and grill and other odds and ends. Thanks again.

Check the head for cracks.  and if antifreeze got in the oil......Antifreeze can eat the bearings...