Scott, If you want to add this, here it is.
The crossmembers from 1963 through 1987/8 will will interchange, as will steering boxes. "A" arms will, too as will spindles. Be aware there are differences in tie rod ends, "A" arm bushings, and ball joints across the years. 1/2T fits1/2T; 3/4T fits 3/4T. I don't know about 1T. In Power Steering, somewhere around 1980 GM went metric on the steering box and pump fittings. Some of the venders have adapter tie rod ends that fit late spindles and early tie rods for 1/2Ts. All the 3/4T joints, bushings, and ends SEEM to be the same.
Power steering must use power steering pitman arm and standard steering must use standard steering pitman arm!
1960 through 1962 are totally different. I have no idea what fits what there.
Best wishes,
Les
Last edited by Roadmarks; 04/22/2013 1:20 PM.
