Oldsmobile F85 Differential Replacement

28 Spline; 1.20 in. Axle Shaft Diameter; 2.73 And Up Ring Gear Pinion Ratio; 8.5 in. GM 8.5/8.6 in. Eaton Differentials Require Special Bearings~Axles w/Small Bearing Bores OD 2.89 in. Req. PN[LM-102949/LM-102911]~Axles w/Large Bearing Bores OD 3.06 in. Req. PN[LM603049/LM603012]

30 Spline; 1.29 in. Axle Shaft Diameter; 3.08 - 3.90 Ring Gear Pinion Ratio; Rear 8.875 in. Designed To Fit Axles Cut w/45deg. Pressure Angles

33 Spline; 1.41 in. Axle Shaft Diameter; 3.08 - 3.90 Ring Gear Pinion Ratio; Rear 8.875 in.

28 Spline; 1.20 in. Axle Shaft Diameter; 2.73 And Up Rng Gear Pin Rat; Manual Locking Hubs Are Recomded For Some Application; 8.5 in. Axles w/Small Bearing Bores OD 2.89 in. Req. PN[LM-102949/LM-102911]~Axles w/Large Bearing Bores OD 3.06 in. Req. PN[LM603049/LM603012]

30 Spline; 1.29 in. Axle Shaft Diameter; 3.08 - 3.90 Ring Gear Pinion Ratio; Rear 8.875 in.

28 Spline; 1.23 in. Axle Shaft Diameter; 3.08 And Up Ring Gear Pinion Ratio; 8.2 in.

17 Spline; 1.197 in. Axle Shaft Diameter; 3.90 And Down Ring Gear Pinion Ratio; Rear 8.2 in. Factory Open Requires Housing Modification For Installation

30 Spline; 1.29 in. Axle Shaft Diameter; 4.10 And Up Ring Gear Pinion Ratio; Rear 8.875 in.

33 Spline; 1.41 in. Axle Shaft Diameter; 4.10 And Up Ring Gear Pinion Ratio; Rear 8.875 in. Designed To Fit Axles Cut w/45deg. Pressure Angles

28 Spline; 1.25 in. Axle Shaft Diameter; 3.36 And Up Ring Gear Pinion Ratio; Rear 8.2 in.

28 Spline; 1.20 in. Axle Shaft Diameter; 2.73 And Up Ring Gear Pinion Ratio; 8.5 in.

Selectable Full Locker w/Limited Slip; For Use w/2.73-Up Ratio; 28 Spline 8.5 in. (10 Bolt)

Selectable Full Locker w/Limited Slip; For Use w/4.10-Up Ratio; 4 Series Case; 30 Spline 8.875 in. (12 Bolt)

Selectable Full Locker w/Limited Slip; For Use w/3.07-3.73 Ratio; 3 Series Case; 30 Spline 8.875 in. (12 Bolt)