Traxxas Rear Ring & Pinion Gear Set

Ring and pinion is very robust and durable but beware for brushed 4x4 owners. these are not installed in the brushed models "slash, rustler, stampede 4x4 XL5" they utilize the stampede 4x4 42 ring 12 pinion, so if you do decide to upgrade for your brushed model make sure you also get the front if you only swap rear it will spin rear wheels faster than fronts which causes the vehicle to be uncontrollable . besides that this is a very worthy product. Highly Recommend it. (side note for XL5 users. if you decide to use the 37 ring and 13 pinion be sure to check motor temps as they raise the ratio for more speed)