The ProTrac suspension upgrade kit for the Traxxas Slash has been a popular item for those looking to improve the track prowess of this popular 2WD truck. Pro-Line recently unveiled two new kits in the ProTrac lineup. One includes arms and steering and camber links for the Traxxas Stampede 4X4 and another adds ProTrac offset short course rims to the previously mentioned parts.
Learn more here.
See a review of a ProTrac system here.