Traxxas TRX-4M Brass Caster Blocks (2) (4g) Axle Housing Plug in new direct connect

Plug in new direct connect sensor wire

It features tough plastic foot rails that help reduce wear and scuffs

combined with the super magnetic rotor improves the G3R Stock motor's torque by 13

Hex hardware with Rust-Resistant Black Oxide Coating

Traxxas TRX-4M Brass Caster Blocks (2) (4g) Axle Housing Plug in new direct connectTraxxas TRX 4M Brass Caster Blocks. These optional brass caster blocks are an excellent upgrade for your TRX 4M rock crawler. Constructed from brass these add 4g of weight down low on your vehicle keeping it more stable on steep terrain. Upgrade your ride with this easy bolt on option. Package includes one left and one right side brass caster block.