The Pro Performance transmission crossmember will fit 63-87 C10's, and can be mounted in various locations to adapt to any trans. This also allows for setting your own pinion angle. Comes with hardware to bolt into the frame and a shim to make it easier when rotating into the frame for installation. Can also be installed upside down to drop the trans even lower if needed.
Trans poly mount NOT included, but can be added.
Prothane polyurethane trans mount w/ hardware