this kit is the bridge: install it once and the whole current body range fits

Spline: 25 tooth

Monster truck bodies take a beating

and responsive power throughout the run

front & rear

Traxxas 9181-BLUE Slash EHD Upgrade Kit Promoto-MX Parts this kit is the bridge:The Traxxas 9181 BLUE is the Outer Driveline and Suspension Upgrade Kit for the Slash 2WD in blue the extreme heavy duty package that hardens the truck's most failure prone components in one purchase. The stock outer driveline and suspension parts are engineered around the power the truck ships with. Add a hotter motor, a bigger battery, or simply drive harder, and the caster blocks, steering blocks, stub axle carriers and associated hardware become