AXIAL Racing SMT10 Precision Hard Steel Differential Gear Set SMJ1202 by GPM  [SMJ1202]

Precision Hardened Differential Gears

The SMJ1202 hardened steel gear set is manufactured for use inside the AXIAL Racing SMT10 differential assembly and is delivered as a matched 2pcs internal gear kit. CNC-grade heat treatment and accurate tooth geometry target improved wear resistance over softer stock gears, supporting consistent engagement under increased torque conditions.

Service technicians will install the SMJ1202 gears using standard diff teardown procedures: remove the diff cover, extract the original internals, fit the hardened gears, and set correct mesh and backlash with OEM bearings and shims retained where serviceable. No additional specialised hardware is included, so use calibrated feeler methods to achieve optimal gear contact.

As a performance-oriented durability upgrade, these hardened internals prioritise longevity and steady torque transfer rather than altering final drive ratios. They are recommended when stock gear wear is evident or when drivetrain torque increases necessitate more robust internal components. Scheduled inspections and appropriate lubrication are advised to maintain precise engagement and long service life.

Use SMJ1202 for reliability-focused SMT10 diff upgrades where precision and wear resistance are required.