I found a guy selling a TH400. The add reads: Chevy Turbo 400 auto tranny from 1980 Chevy truck, short tailshaft, complete with torque convertor, mount, dipstick, etc. Your choice of bolt on yoke or slip yoke. $150 (Canadian). Question is can I use this in a K5? If so, I assume the bolt-on yoke is the more desireable one?