RING GEAR DIFF/PINION OVERDRVERing gear, differential/ pinion gear, differential (overdrive, machined) Part 8287 UPC 020334828705Traxxas 8287 TRX-4 Ring Gear Differential/pinion Overdrive NEW IN PACKAGE TRA1SKU: 8287$39.95PriceQuantity*Add to CartBuy Now