This is a Traxxas Front Portal Drive Input Gear for the TRX-4.

This is a pair of Traxxas Heavy Duty Rear Left/Right Axle Shafts for the TRX-4. Requires: TRA8065 front portal drive input gears

This is the Traxxas 45T spur gear for the TRX-4.

This is the Traxxas 39T spur gear for the TRX-4.

This is a pair of Traxxas 0.61 Rate GTS Blue Stripe Shock Springs in a natural finish for the TRX-4 Scale Crawler.

This is a pair of Traxxas 0.39 Rate GTS Orange Stripe Shock Springs in a natural finish for the TRX-4 Scale Crawler.

This is a pair of Traxxas 0.30 Rate GTS White Stripe Shock Springs in a natural finish for the TRX-4 Scale Crawler.

This is a pair of Traxxas 0.22 Rate GTS Yellow Stripe Shock Springs in a natural finish for the TRX-4 Scale Crawler.

This is the set of two Traxxas front shock springs 0.45 rate GTS.

This is the set of two Traxxas rear shock springs with 0.54 rate GTS

Spur gear, 54-tooth, steel (wide-face, 1.0 metric pitch) -

Traxxas XO-1 Mod 1 Spur Gears are available in 46, 50 or 54 tooth count options to fine tune the gear ratio of your model.