RC10B6 Builders’ Support Kit is a complete upgrade package for 1/10-scale 2WD RC10B6 builds, designed to support dirt oval sprint cars, late models, and custom drag cars. It combines Laydown and Layback transmissions with a ball differential for flexible traction and torque management, plus a next-generation Octalock slipper clutch with LCF pads to help put power to the ground on a variety of track surfaces. Designed for flexible setup, this kit includes a front-end assembly with gull-wing suspension arms and blue aluminum front axles, a rear-end setup with pivot aluminum arm mounts, 67mm CVA bones, and RC10B6.1 rear hubs. Four 12mm Big Bore shocks (24mm bodies) provide tuned damping, while adjustable differential height enables drive-shaft alignment through different ride heights. The package also includes a lightweight top shaft, a direct-to-chassis servo mounting system, and a full bearing set, turnbuckles, molded wire clips, and Octalock gears with LCF pads to support reliable assembly and durable performance on track.