TCI Automotive 4L60E Ls Inpt/Hd Drum No Shell 373937

Description:

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 areasrather than removing material, the splines are actually compacted, which causes the material to be more dense in this area. The sleeved drum is made from ultra-strong 4130 steel for superior strength and durability, and a SmartShell (where applicable) stops any chance of sunshell breakage.