GM Chevy 8.875" 12-Bolt CAR Rearend Posi, Gear, Bearing Kit Package - 3.73 Ratio BRAND NEW Chevy 12-Bolt CAR Yukon Dura-Grip (Clutch) Posi Unit (30 Spline) BRAND NEW Chevy 12-Bolt CAR Ring & Pinion (3.73 Ratio) BRAND NEW Chevy 12-Bolt CAR Master Bearing/Installation Kit * C-Clip Applications Only * Fits CAR Rearends ONLY - Will NOT fit 12-Bolt TRUCK Rearends