LOSI LMT 4WD Solid Axle Monster Truck 4140 Steel Front/Rear Differential Outdrive by GPM LMT039S  [LMT039S]

Front/Rear Differential Outdrive for LOSI LMT

This is an RC-scale replacement outdrive made for LOSI LMT solid axle monster trucks, manufactured from 4140 steel to increase wear resistance in the differential assembly. The part functions as the front and rear differential outdrive and is intended to restore or extend drivetrain life on scale 1/8 and 1/10 LMT solid axle models.

The component is designed to be a direct swap for the factory part LOS242038 where applicable. Installation requires removing the differential housing, transferring or replacing the outdrive, and confirming pin and gear mesh alignment before final assembly. Inspect mating gear faces and pin seating to avoid premature wear.

In tuning and maintenance, upgrading to a hardened 4140 steel outdrive reduces deformation under load and helps maintain consistent gear engagement during high-stress runs, making it a practical choice for hobbyists focused on drivetrain reliability rather than performance claims.