[raycow]

It will work, and work well, but this will be more of a project than you may be expecting unless you have done a manual to automatic swap before.

Your best bet would be to look for a donor vehicle, or you will be scrounging parts forever. Here are the MAJOR parts you will need: An automatic radiator, oil cooler lines, an automatic column or a floor shifter, shift linkage, a kickdown cable and bracket, a crossmember for the rear mount, a flexplate, and a starter. There were no TH350s before about 1969, so your donor truck should be in the 69-72 range.

The good news is that your stock driveshaft will work if you have a "short" TH350 (about 27" long). The bad news is that you will have to remove the bellhousing crossmember, and it is likely to be riveted in place.

If you still want to go ahead with this and have any specific questions (yes, I'm sure I missed some of the small parts), feel free to ask.

Ray