background: T-350 in Clarence let go on the way to the hamb drags last year. lots of metal on metal grinding noises inside the ******. Clarence was put together originally with a powerglide, and the driveshaft fitted to that 283/PG combo. actually the 283/pg was original to the same '66 impala; had been in my family since new. when the pg turned out to be junk i bought a T-350 at the bone yard and had it rebuilt. it fit perfectly in place of the pg with the same driveshaft, so length of pg and that t-350 must have been the same. clarence is currently parked in a spot that makes it nearly impossible to jack up to do any investigation; and you'd have to be only about 3-4" thick to crawl under there as it sits. i believe that the permanent solution to this problem is to install the perfectly good 413/727 combo that's sitting in the corner of my shop. however, i want to drive it this summer and that means simply replacing the t-350 and doing the engine/****** swap at some later date (there's no way i can do such a swap this year). note that i don't want to spend the ca$h to rebuild this t-350 since i could do the mopar swap for about what it would cost to rebuild the existing ******. that brings us to my question: i've heard that there are "short tailshaft" t-350's and "long tailshaft" t-350's. is that true? which do i have? if i buy a used one to get by with for the time being what do i look for to determine that i'm getting the right one?
I would offer a guess that it's a short tail,just as I put this up I saw someone posted a picture with lengths so I edited it
thanx guys. i never suspected that the pg came in different lengths too. looks like it's time to jump through a buncha hoops to get under there and measure.
novas, camaros, chevelles, were all short tail shaft, mostly the early gm vans used long tail shaft. going by the above chart that was posted should get ya in the ball park.
The Jalopy Journal
