This GPM assembly uses 4140 carbon steel for the front and rear CVD shafts to increase torsional durability and reduce drivetrain deflection under load. The kit includes 7075 alloy wheel locks and hex claws to reinforce the hub connection and improve load transfer. A sealed cap design helps prevent sand and dust ingress, and the extended wheel locks with internal knurling ensure consistent clamping force to limit wheel movement during high torque events.