[Shadowjack]

Same old stuff--the box will physically bolt into pretty much any GM car made after 1965, except the little ones. The pitman arms for power boxes fit all power boxes, but they're different between F-bodies and everything else. The rag joint changed about '78 or '79, can't remember exactly so you need to look for that. The hoses changed from SAE flare to metric O-ring in the same period so that has to be checked. You can get the correct parts to make it work without too much trouble.
The bar fits '64-'72 A-bodies perfectly, but I don't think it will fit early F-bodies.