RING GEAR DIFF/PINION 12/47 RRing gear, differential/ pinion gear, differential (12/47 ratio) (rear) Part 6779 UPC 020334677907Traxxas 6779 Ring gear differential/pinion gear 12/47 ratio rear TRA6779 TRA1SKU: 6779$15.00PriceQuantity*Add to CartBuy Now