Hemi 440 Steel Billet Crankshaft 4.100 Stroke this transmission is built with

this transmission is built with premium materials and cutting-edge engineering to dominate on the track or off-road

They feature extra-thick steel that's double-welded to the ring gear for added strength

and excessive emissions

Speedmaster pinion support stud kits offer optimum durability for maximum drivetrain performance

along with energy-efficient and cost-effective friction management

Hemi 440 Steel Billet Crankshaft 4.100 Stroke this transmission is built withSpeedmaster 4340 Billet Steel crankshafts are manufactured from high quality true billet round bar stock. Their performance, strength and horsepower capabilities are significantly outstanding compared to cast forged crankshafts. An engine with a 4340 billet steel crankshaft will rev faster and cleaner due to the different harmonics produced from the high grade material. Those crankshaft are x rayed and ultrasonically tested.