Rear End Locker Spring

The HYPERCO Rear End Locker Spring is a precision-engineered replacement component designed for off-road enthusiasts and serious wheelers who demand reliable differential locking performance. This spring is crucial for maintaining effective locker engagement in specific rear differentials, ensuring that both wheels receive equal power during high-traction situations. It is particularly beneficial for those who frequently navigate challenging terrains.

Manufactured to tight tolerances, the HYPERCO locker spring ensures proper spring rate and consistency across engagement cycles. Its compact design—measuring 4.4 x 4.25 x 7.25 inches and weighing just 0.41 lbs—fits within standard differential housings without modification. The spring works by maintaining pressure on the locker's clutch or dog-tooth mechanism, allowing for smooth actuation between open and locked modes.

This component is ideal for those rebuilding or servicing specific electronic or manual locking differentials, particularly in off-road vehicles. Installation requires removing the differential cover and accessing the locker assembly, which is a task best handled by experienced mechanics to ensure proper fit and function.