AXIAL Racing SMT10 Hard Steel Differential Gears SMJ1202 Upgrade by GPM  [SMJ1202]

Durable Steel Gears for SMT10 Diff

The SMJ1202 hard steel gear set is produced for the AXIAL Racing SMT10 differential and supplied as a 2pcs internal gear pair. The hardened steel gives better wear performance than common stock gears, helping the diff retain correct mesh during heavier trail use and more demanding driving conditions.

Fitting is the same as standard diff maintenance: open the diff case, replace the original internal gears with the SMJ1202 items, check and set proper mesh and backlash, and confirm smooth rotation using the existing bearings and shims. No specialised tools are provided, so use your usual toolkit and a tidy bench area to avoid grit.

These steel internals are a longevity upgrade focused on reliable power transfer rather than altering gear ratios. Fit them when stock gears show signs of wear or when your motor and gearing choices increase torque loads. Regular checks and adequate lubrication will maximise service life and smooth engagement.

Choose SMJ1202 for stronger diff internals on SMT10s or when creating a build prioritising drivetrain durability.