This set provides hardened steel spider gears suitable for TRAXXAS E-REVO style 1/10 4WD differentials. The ER1200S/G2 kit replaces factory alloy or plastic spiders to reduce wear and maintain reliable engagement under heavier loads.
Fitting is a typical diff service job: remove the diff housing, extract the gear pack, swap in the steel spiders, check gear mesh and clearances, and reassemble with the diff oil that matches your tuning. Common hobby tools are all that is needed.
These gears are aimed at improving component life rather than altering handling. Expect steadier gear interaction when using higher power setups or aggressive gear ratios, which reduces replacement frequency.
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