The GPM TXM3033TS is a precision-engineering upgrade for the Traxxas XRT 8S that replaces stock gears with 40Cr carbon steel parts to improve long-term transmission stability. The kit includes a 33T M1.5 spur and a 30T motor gear; the three-point support layout and the 7075 aluminium mount provide a more rigid gear support than the original two-point arrangement.