Adj. Torque Slider Kitslider Assembly, Bicknell Racing Productsoffset Torque Arm Slider Machined From 6061 Alum. Slider Pick-Up Has 2 Locations Middle For Medium To Tacky Tracks And Left Location For Slick Tracks. Very Easy To Change Pick-Up Location At The Track. For Direct Bolt In Existing Chassis. Will Fit Any Mid Rail Chassis. Kit Comes Complete Ready To Bolt In.