Oldsmobile F85 Differential Ring and Pinion Replacement

GM 8.2 in. Ring Gear; 10 Cover Bolt; 10 Ring Gear Bolts; 28 Axle Spline; 25 Pinion Spline; Standard Rotation

GM 8.2 in. Ring Gear BOP; 10 Cover Bolt; 10 Ring Gear Bolts; 28 Axle Spline; 27 Pinion Spline; Standard Rotation

GM 55P 8.2 in. Ring Gear; 10 Cover Bolts; 10 Ring Gear Bolts; 17 Axle Spline; 17 Pinion Spline; Standard Rotation Factory Open Requires Housing Modification For Installation

For GM 8.5"/8.625" (10 Bolt); A-Line Ring and Pinion; 3.08 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier

8.5 In. Ring Gear w/3.42 Axle Ratio

8.5 In. Ring Gear w/3.73 Axle Ratio

For GM 8.5"/8.625" (10 Bolt); 3.73 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier

For GM 8.5"/8.625" (10 Bolt); A-Line Ring and Pinion; 3.42 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier

For GM 8.5"/8.625" (10 Bolt); A-Line Ring and Pinion; 3.73 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier

For GM 8.5"/8.625" (10 Bolt); 4.11 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier

For GM 8.5"/8.625" (10 Bolt); A-Line Ring and Pinion; 4.56 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier

For GM 8.5"/8.625" (10 Bolt); 3.42 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier

For GM 8.5"/8.625" (10 Bolt); A-Line Ring and Pinion; 4.11 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier

For GM 8.5"/8.625" (10 Bolt); 4.56 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier

8.5 In. Ring Gear w/2.73 Axle Ratio

For GM 8.875" (12 Bolt); Performance Ring and Pinion; 4.11 Ratio; Requires a 4.10 and Numerically Higher Ratio Carrier

8.5 In. Ring Gear w/3.23 Axle Ratio

For GM 8.5"/8.625" (10 Bolt); Performance Ring and Pinion; 4.88 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier

For GM 8.5"/8.625" (10 Bolt); 3.08 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier

For GM 8.5"/8.625" (10 Bolt); Performance Ring and Pinion; 4.10 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier

For GM 8.875" (12 Bolt); Performance Ring and Pinion; 4.56 Ratio; Requires a 4.10 and Numerically Higher Ratio Carrier

For GM 8.5"/8.625" (10 Bolt); Performance Ring and Pinion; 3.73 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier

For GM 8.875" (12 Bolt); Performance Ring and Pinion; 3.55 Ratio; Requires a 3.07 to 3.73 Ratio Carrier

For GM 8.5"/8.625" (10 Bolt); 2.73 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier

For GM 8.875" (12 Bolt); Performance Ring and Pinion; 5.14 Ratio; Requires a 4.10 and Numerically Higher Ratio Carrier; Requires Notched Cross Pin 80-0269-1 For Ring Gear Clearance

For GM 8.5"/8.625" (10 Bolt); 3.90 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier

For GM 8.875" (12 Bolt); Performance Ring and Pinion; 3.73 Ratio; Requires a 3.07 to 3.73 Ratio Carrier

For GM 8.875" (12 Bolt); Performance Ring and Pinion; 3.90 Ratio; Requires a 3.07 to 3.73 Ratio Carrier

For GM 8.5"/8.625" (10 Bolt); Performance Ring and Pinion; 3.42 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier

8.5 In. Ring Gear w/4.10 Axle Ratio

For GM 8.5"/8.625" (10 Bolt); Performance Ring and Pinion; 4.56 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier

For GM 8.875" (12 Bolt); Performance Ring and Pinion; 3.42 Ratio; Requires a 3.07 to 3.73 Ratio Carrier

For GM 8.875" (12 Bolt); 4.10 Ratio; Requires a 4.10 and Numerically Higher Ratio Carrier

For GM 8.5"/8.625" (10 Bolt); Performance Ring and Pinion; 5.13 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier

For GM 8.5"/8.625" (10 Bolt); Performance Ring and Pinion; 3.08 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier

For GM 8.5"/8.625" (10 Bolt); Performance Ring and Pinion; 2.73 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier

For GM 8.875" (12 Bolt); 4.88 Ratio; Requires a 4.10 and Numerically Higher Ratio Carrier

For GM 8.5"/8.625" (10 Bolt); Performance Ring and Pinion; 4.30 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier

For GM 8.875" (12 Bolt); 3.90 Ratio; Requires a 4.10 and Numerically Higher Ratio Carrier

For GM 8.5"/8.625" (10 Bolt); 4.30 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier

For GM 8.5"/8.625" (10 Bolt); 4.10 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier

For GM 8.875" (12 Bolt); 4.56 Ratio; Thick Ring Gear; Requires a 3.07 to 3.73 Ratio Carrier

For GM 8.875" (12 Bolt); 3.42 Ratio; Requires a 3.07 to 3.73 Ratio Carrier

For GM 8.5"/8.625" (10 Bolt); 3.73 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier

For GM 8.2" BOP (10 Bolt); Performance Ring and Pinion; 3.73 Ratio; 3.36 Ratio Carrier and Higher; Requires 3/8" x 24 RH Ring Gear Bolts

For GM 8.5"/8.625" (10 Bolt); 3.90 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier

For GM 8.875" (12 Bolt); 3.73 Ratio; Requires a 3.07 to 3.73 Ratio Carrier

For GM 8.5"/8.625" (10 Bolt); 4.56 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier

For GM 8.5"/8.625" (10 Bolt); 4.88 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier

For GM 8.5"/8.625" (10 Bolt); 3.08 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier

For GM 8.875" (12 Bolt); Performance Ring and Pinion; 4.11 Ratio; Thick Ring Gear; Requires a 3.07 to 3.73 Ratio Carrier

For GM 8.875" (12 Bolt); 4.33 Ratio; Requires a 4.10 and Numerically Higher Ratio Carrier

For GM 8.5"/8.625" (10 Bolt); 3.42 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier

For GM 8.5"/8.625" (10 Bolt); 5.13 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier

For GM 8.875" (12 Bolt); 5.14 Ratio; 4.10 Ratio Carrier and Higher; Requires Notched Cross Pin 80-0269-1 For Ring Gear Clearance

For GM 8.875" (12 Bolt); 3.08 Ratio; Requires a 3.07 to 3.73 Ratio Carrier

For GM 8.875" (12 Bolt); 4.56 Ratio; Requires a 4.10 and Numerically Higher Ratio Carrier

For GM 8.875" (12 Bolt); 3.55 Ratio; Requires a 3.07 to 3.73 Ratio Carrier

For GM 8.5"/8.625" (10 Bolt); 3.23 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier

For GM 8.2" BOP (10 Bolt); Performance Ring and Pinion; 4.11 Ratio; 3.36 Ratio Carrier and Higher; Requires 3/8" x 24 RH Ring Gear Bolts

For GM 8.2" BOP (10 Bolt); Performance Ring and Pinion; 3.55 Ratio; 3.36 Ratio Carrier and Higher; Requires 3/8" x 24 RH Ring Gear Bolts

For GM 8.875" (12 Bolt); 3.73 Ratio; Thin Ring Gear; Requires a 4.10 and Numerically Higher Ratio Carrier

For GM 8.875" (12 Bolt); 3.90 Ratio; Thick Ring Gear; Requires a 3.07 to 3.73 Ratio Carrier

For GM 8.875" (12 Bolt); 4.10 Ratio; Thick Ring Gear; Requires a 3.07 to 3.73 Ratio Carrier

For GM 8.875" (12 Bolt); 5.86 Ratio; 4.10 Ratio Carrier and Higher; Requires Notched Cross Pin 80-0269-1 For Ring Gear Clearance

For GM 8.5"/8.625" (10 Bolt); 5.38 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier; Requires Notched Cross Pin Part# 80-0272-1

For GM 8.5"/8.625" (10 Bolt); 5.57 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier; Requires Notched Cross Pin Part# 80-0272-1

For GM 8.875" (12 Bolt); 4.88 Ratio; Pro Gear; Requires a 4.10 and Numerically Higher Ratio Carrier

For GM 8.2" BOP (10 Bolt); 3.55 Ratio; 3.36 Ratio Carrier and Higher; Requires 3/8" x 24 RH Ring Gear Bolts

For GM 8.875" (12 Bolt); 5.14 Ratio; Pro Gear; 4.10 Ratio Carrier and Higher; Requires Notched Cross Pin 80-0269-1 For Ring Gear Clearance

For GM 8.875" (12 Bolt); 4.56 Ratio; Pro Gear; Requires a 4.10 and Numerically Higher Ratio Carrier

For GM 8.875" (12 Bolt); 5.38 Ratio; Pro Gear; 4.10 Ratio Carrier and Higher; Requires Notched Cross Pin 80-0269-1 For Ring Gear Clearance

For GM 8.875" (12 Bolt); 5.38 Ratio; 4.10 Ratio Carrier and Higher; Requires Notched Cross Pin 80-0269-1 For Ring Gear Clearance

For GM 8.875" (12 Bolt); 4.11 Ratio; Pro Gear; Requires a 4.10 and Numerically Higher Ratio Carrier

For GM 8.875" (12 Bolt); 4.33 Ratio; Pro Gear; Requires a 4.10 and Numerically Higher Ratio Carrier

For GM 8.875" (12 Bolt); 5.86 Ratio; Pro Gear; 4.10 Ratio Carrier and Higher; Requires Notched Cross Pin 80-0269-1 For Ring Gear Clearance

For GM 8.875" (12 Bolt); 5.57 Ratio; Pro Gear; 4.10 Ratio Carrier and Higher; Requires Notched Cross Pin 80-0269-1 For Ring Gear Clearance