The gears are very smooth

-- High-precision metal gears for smooth action and durability

Traxxas heavy-duty suspension arms feature an all-new design which takes advantage of a proprietary composite material that is designed specifically for high loads and hard landings

Traxxas 3646 Screw 3x15mm insex(6)

RPM Rear Axle Carrier Black Slash, Nitro Slash, Stampede, Rustle - 80382 begynderfly The gears are very smoothRPM Rear Bearing Carriers for 2WD Slash, Nitro Slash, Stampede, Rustler & Bandit Black Quick Notes: Fits the Traxxas 2WD Slash, Rustler, Stampede & Bandit Replaces stock Traxxas 3752 5x11x4mm. bearings not included Not for use on 4