HRSSLF125 Steel Differential Spool Locker Tra 4x4

Hardened steel differential spool designed to replace the factory differential gears in 4-wheel-drive chassis to lock the front or rear diff for maximum traction and power transfer. Precision machined from high-strength steel to withstand torque loads and resist wear under demanding off-road conditions where stock bevel gears may slip or strip. By eliminating differential action the spool forces both wheels to rotate at the same speed, improving acceleration and grip on loose or technical terrain. Direct replacement fit into compatible differential housings using existing hardware and geometry for straightforward installation.

• Hardened steel construction for durability and wear resistance under high torque loads.
• Internal spool design locks both outputs together for maximum traction.
• Precision machined gear surfaces maintain smooth mesh and reduce drivetrain lash.
• Direct fit replacement for compatible 4x4 differential assemblies.
• Improves power transfer and grip in low-traction or technical off-road conditions.
• Designed to resist slop and wear for longer service life compared with stock diff gears.
• Works with stock hardware and mounting points for easy installation.