Newly improved heavy-duty suspension arms, front (3631g) (2) (heavy-duty, cold-weather material) For Traxxas vehicles: Ford Raptor, Bigfoot No.1, Bigfoot RTR, Nitro Slash, Rustler RTR, Rustler VXL, Rustler, Slash RTR, Slash RTR, Slash RTR with TQ, Stampede, and more. See your vehicle user manual.