Not a bad swap...You will want/need : Engine mounts from a RWD Caddy, the Left exhaust manifold from a RWD. You will need to either use an adapter plate for the BOP/Caddy bell housing (only option if you want to use a 700r4) or have the 4x4 output shaft put in a BOP/Caddy bell housing tranny. The front crossmember will need notched for the oil filter & a few wires (HEI, ect.) need altered. That's the basics, Lorne