I just got a low mile 65 suburban. I've always wanted one, and now I finally have a really nice one. Problem is, neither my wife or I care for the noisy four speed, granny low floor shifter. I would like to swap in a three speed automatic such as one that I believe was available as an option in 1966. Turbo 400, right?
Anyway, does anyone have a real good educated idea of just how difficult this swap will be? I would prefer to have a column shift, too. Like the factory did it.
I think I could get all the parts from a 66 donor truck or suburban that came equipped with that tranny.
Also, I've heard conflicting info regarding using a later 700r4 trans in a heavy vehicle like a old burb. A local tranny guy says no way, don't do it, it won't hold up. Says a turbo 400 is the ticket. Right or wrong, anyone?
Thanks for any input.

1966 Chevy C-10 Longbed
In the Stovebolt Gallery
More pix on Photobucket