American Powertrain's Square Body Chevy/GMC 4x4 kit for the TREMEC TR-4050 5-speed, 4W manual transmission is designed to fit 1973-1987 pickups and SUVs. This includes Suburbans, Jimmys, and Chevy Blazers. Included in the kit is an aluminum Bellhousing, Hydramax hydraulic clutch and components, flywheel and bolts, trans mount, pilot bearing, harness and shifter, shifter knob, transfer case adapter for the 10-spline NP205 and all other necessary hardware. Available upgrades include the shifter, clutch, and more.