Traxxas 9063-GRAY Gray Aluminum Caster Blocks Rock Crawlers The Safe-D shaft profile keeps

The Safe-D shaft profile keeps the pinion locked to the motor shaft so drive and braking are not lost if the set screw ever backs out

ARRMA 1/10 GRANITE 223S 4X4 RTR Brushless Monster Truck (ARA4302V4)

Universal design works with many RC cars and trucks

Arrma Infraction 3s

Traxxas 9063-GRAY Gray Aluminum Caster Blocks Rock Crawlers The Safe-D shaft profile keepsImportant fitment note: these are designed for 4X4 vehicles with the Extreme HD Upgrade Kit (9080) installed. They do not fit standard suspension components. Check that your vehicle has the 9080 series kit before ordering. The Traxxas 9063 GRAY is a pair of left and right aluminum caster blocks that improve the appearance, ruggedness, and control of your Traxxas model. Billet 6061 T6 aluminum construction adds strength and precision where you want it