The GPM XRTM056 rear lower suspension arms are manufactured from aviation grade 7075-T6 aluminum to provide a strong yet lightweight replacement for the TRAXXAS MINI XRT VXL 3S. Their material selection emphasises durability and consistent wear resistance while helping to reduce rear-end flex by stabilising the rear hub stub axle carriers. These arms are designed as direct replacements for factory parts #10727 and #10740 and secure with the supplied suspension pins and 3.0 lock nuts for a dependable assembly.