Cup Racer Kit with Datsun 510 Body HPI 'True Ten' design Full-time 4WD for huge levels of grip Upper and lower sturdy FRP chassis Super-smooth rear ball diff Fully enclosed shaft drive for total protection Stainless steel hinge pins with anodized aluminum braces Fits any 540-size motor, brushed or brushless Use any 48-pitch pinion gear Oil-filled coil over shocks front and rear Variable wheel hex adapter Multiple shock locations and ride height settings Inboard front shocks allow fitting of future low-profile bodies Laydown steer