TCI Automotive 700R4/4L60E 1987-1997 Inpt/Hd Drum

Eliminate input shaft and drum breakage in high performance applications. The input shafts are made from a heat-treated, billet 300M material with a high yield strength that resists breakage and results in less shaft twisting than OEM material. Rolled splines increase the strength and density of the material in the splined areas