GM 8.2" BOP (Buick, Olds, Pontiac) 10-Bolt Rearend Posi, Gear, Bearing Kit Package - 4.11 Ratio BRAND NEW 8.2" BOP Yukon Dura-Grip (Clutch) Posi Unit (28 Spline) BRAND NEW 8.2" BOP Ring & Pinion (4.11 Ratio) BRAND NEW 8.2" BOP Master Bearing/Installation Kit * Bolt-In Axle (NON C-Clip) Applications