Traxxas Traxxas 9737 brass steering blocks are precision‑machined replacement steering blocks designed to add valuable weight low on your TRX‑4M chassis and improve stability and handling during rock crawling and trail driving. Made from solid brass, these blocks help resist wear and bending while maintaining the trail‑tuned steering geometry of your vehicle. They include the required mounting hardware for straightforward installation and provide enhanced anti‑rollover performance on uneven terrain. These brass steering blocks are compatible with Traxxas TRX‑4M 1/18 scale models such as the 1979 Chevrolet K10 High Trail Edition, 1979 Ford F‑150 High Trail Edition, Ford Bronco, and Land Rover Defender.