I've never put an automatic behind a 'bolt, but I do know you need an adapter plate. Most of the vendors sell them. On which is the better transmission. I'm voting for the 700R4. GM started using the 700R4 in 82 and continued with the 700R4/4L60 line until a couple years ago. They had lots of problems with the early ones though. Mainly because the front pump couldn't supply enough fluid to the transmission. They fixed the problem by 85. The 700R4/4L60 from 85-92, didn't rely on the ECM to do it's job. Most transmissions from 92 on up were the 4L60E. They needed the ECM for torque converter lockup, shift management and other things. The good thing them is that the internals are pretty much completely interchangable, with the exception of the valve body. So, all the updates GM did over the years, will work on just about any of the transmissions. A stock rebuild and a Transgo shiftkit will more than suffice for any old truck. You'll be happy with it. Go to
www.transmissioncenter.net , they have tons of hardcore parts for the 700R4, the guys are also very helpful.
Chris
