TRAXXAS E-REVO Steel Diff Internal Gear Set ER1200S by GPM  [ER1200S]

Steel internal gears for E-REVO diffs

This kit supplies hardened steel differential gears for use in TRAXXAS E-REVO models. The black-finished steel provides consistent contact under load and a reliable rotational feel inside the diff housing. It is supplied as a direct replacement for compatible stock internal gears.

Fitment is standard diff servicing: remove the cover, extract original gears, inspect bearings and mating gears, then install the steel output and spider gears. Adjust gear mesh and clearances before reassembly, and replace or re-seat O-rings where needed to maintain the seal. Apply suitable differential grease and confirm free rotation through full suspension movement.

Note on setup: steel components will change wear and thermal behaviour compared with plastic or softer alloys. Monitor backlash and bearing wear during initial runs, keep lubrication consistent, and avoid over-torquing the diff case screws which can alter mesh alignment.

Ideal for hobbyists performing maintenance or lightweight upgrades on compatible 1/10 4WD platforms where a metal diff internal is preferred.