Gearhead Gifts - Find the Perfect Gift for the Gearhead on Your List!

Gearhead Gifts - Find the Perfect Gift
for the Gearhead on Your List!

$5 Off Your $100 Mobile App Purchase!

Availability

OLDSMOBILE 442 Differential & Rear-End Components

Individual Parts
Part Groups

Results 1 - 25 of 51

Motive Gear Performance Ring and Pinion Sets G885410 GM 8.5/8.6 in. 4.10 Gears

Motive Gear Performance Ring and Pinion Sets G885410 GM 8.5/8.6 in. 4.10 Gears

Motive Gear Performance Ring and Pinion Sets G885410 GM 8.5/8.6 in. 4.10 Gears

Gear, Ring and Pinion, 4.10:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: MGR-G885410

4.89 out of 5 stars ( 9 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Richmond Gear Pro Gear Ring and Pinion Sets 79-0074-1 GM 8.875 in. (12-bolt) passenger car 4.33 Gears

Richmond Gear Pro Gear Ring and Pinion Sets 79-0074-1 GM 8.875 in. (12-bolt) passenger car 4.33 Gears

Richmond Gear Pro Gear Ring and Pinion Sets 79-0074-1 GM 8.875 in. (12-bolt) passenger car 4.33 Gears

Gear, Ring and Pinion, 4.33:1 Ratio, GM, 12-Bolt Car, 4 Series, Set

Part Number: RMG-79-0074-1

3.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Richmond Gear Pro Gear Ring and Pinion Sets 79-0099-1 GM 8.875 in. (12-bolt) passenger car 4.11 Gears

Richmond Gear Pro Gear Ring and Pinion Sets 79-0099-1 GM 8.875 in. (12-bolt) passenger car 4.11 Gears

Richmond Gear Pro Gear Ring and Pinion Sets 79-0099-1 GM 8.875 in. (12-bolt) passenger car 4.11 Gears

Gear, Ring and Pinion, 4.11:1 Ratio, GM, 12-Bolt Car, 4 Series, Set

Part Number: RMG-79-0099-1

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Richmond Gear Pro Gear Ring and Pinion Sets 79-0072-1 GM 8.875 in. (12-bolt) passenger car 4.56 Gears

Richmond Gear Pro Gear Ring and Pinion Sets 79-0072-1 GM 8.875 in. (12-bolt) passenger car 4.56 Gears

Richmond Gear Pro Gear Ring and Pinion Sets 79-0072-1 GM 8.875 in. (12-bolt) passenger car 4.56 Gears

Gear, Ring and Pinion, 4.56:1 Ratio, GM, 12-Bolt Car, 4 Series, Set

Part Number: RMG-79-0072-1

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Richmond Gear Pro Gear Ring and Pinion Sets 79-0064-1 GM 8.875 in. (12-bolt) passenger car 4.88 Gears

Richmond Gear Pro Gear Ring and Pinion Sets 79-0064-1 GM 8.875 in. (12-bolt) passenger car 4.88 Gears

Richmond Gear Pro Gear Ring and Pinion Sets 79-0064-1 GM 8.875 in. (12-bolt) passenger car 4.88 Gears

Gear, Ring and Pinion, 4.88:1 Ratio, GM, 12-Bolt Car, 4 Series, Set

Part Number: RMG-79-0064-1

4.25 out of 5 stars ( 4 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Yukon Gear & Axle Dura Grip Positraction Carriers GM 8.5 Inch, O axle YDGGM8.5O-3-28

Yukon Gear & Axle Dura Grip Positraction Carriers GM 8.5 Inch, O axle YDGGM8.5O-3-28

Yukon Gear & Axle Dura Grip Positraction Carriers GM 8.5 Inch, O axle YDGGM8.5O-3-28

Dura Grip Positraction Carrier, Traction-Loc, GM 8.5 Oldsmobile Axle, 28 Spline, 3 Series Carrier, Each

Part Number: YGA-10301

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Powertrax No-Slip Traction Systems GM 8.875 Inch (12-bolt), Car/Truck 9207883005

Powertrax No-Slip Traction Systems GM 8.875 Inch (12-bolt), Car/Truck 9207883005

$40.00 Mail-In Rebate

Price after Manufacturer Rebate: $621.99

Rebate Expires: 12/31/2025

Get $40 back after rebate on this Powertrax Product! Go to https://www.richmondgear.com/rebate.pdf for details.

Get UP TO $55 back after rebate on select Powertrax Products! Go to https://www.richmondgear.com/rebate.pdf for details. Valid on purchases made between 11/1/25 and 12/31/25. Claims must be submitted within 30 days of purchase. Allow 6-8 weeks for processing. Valid in USA and Canada. Limit two qualifying purchases per household or address. This offer cannot be combined with other discounts or offers. Rebate intended for end consumer only.

Powertrax No-Slip Traction Systems GM 8.875 Inch (12-bolt), Car/Truck 9207883005

Differential, No-Slip Traction System, 30-Spline, GM, 12-Bolt, Each

Part Number: PWT-92-0788-3005

3.88 out of 5 stars ( 8 )

Estimated Ship Date: Nov 25, 2025 if ordered today

    • $40.00 Mail-In Rebate

    Price after Manufacturer Rebate: $621.99

    Rebate Expires: 12/31/2025

    Get $40 back after rebate on this Powertrax Product! Go to https://www.richmondgear.com/rebate.pdf for details.

    Get UP TO $55 back after rebate on select Powertrax Products! Go to https://www.richmondgear.com/rebate.pdf for details. Valid on purchases made between 11/1/25 and 12/31/25. Claims must be submitted within 30 days of purchase. Allow 6-8 weeks for processing. Valid in USA and Canada. Limit two qualifying purchases per household or address. This offer cannot be combined with other discounts or offers. Rebate intended for end consumer only.

...Loading

Estimated Ship Date: Nov 25, 2025 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Powertrax Lock-Right Lockers GM 8.875 Inch (12-bolt), Car/Truck 1910-LR

Powertrax Lock-Right Lockers GM 8.875 Inch (12-bolt), Car/Truck 1910-LR

4 out of 5 stars ( 15 )

Estimated Ship Date: Today

...Loading

Motive Gear Performance Ring and Pinion Sets BP882355 GM 8.2 in. BOP axle 3.55 Gears

Motive Gear Performance Ring and Pinion Sets BP882355 GM 8.2 in. BOP axle 3.55 Gears

Motive Gear Performance Ring and Pinion Sets BP882355 GM 8.2 in. BOP axle 3.55 Gears

Gear, Ring and Pinion, 3.55:1 Ratio, GM, 8.2 in., Buick, Pontiac, Set.

Part Number: MGR-BP882355

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Motive Gear Ring and Pinion Sets GM10-411 GM 8.5/8.6 in. 4.11 Gears

Motive Gear Ring and Pinion Sets GM10-411 GM 8.5/8.6 in. 4.11 Gears

Motive Gear Ring and Pinion Sets GM10-411 GM 8.5/8.6 in. 4.11 Gears

Gear, Ring and Pinion, 4.11:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, Set

Part Number: MGR-GM10-411

5.0 out of 5 stars ( 9 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Motive Gear Performance Ring and Pinion Sets G888390 GM 8.875 in. (12-bolt) passenger car 3.90 Gears

Motive Gear Performance Ring and Pinion Sets G888390 GM 8.875 in. (12-bolt) passenger car 3.90 Gears

Motive Gear Performance Ring and Pinion Sets G888390 GM 8.875 in. (12-bolt) passenger car 3.90 Gears

Gear, Ring and Pinion, 3.90:1 Ratio, GM, 12-Bolt Passenger Car, Set

Part Number: MGR-G888390

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Motive Gear Ring and Pinion Sets GM10-390 GM 8.5/8.6 in. 3.90 Gears

Motive Gear Ring and Pinion Sets GM10-390 GM 8.5/8.6 in. 3.90 Gears

Motive Gear Ring and Pinion Sets GM10-390 GM 8.5/8.6 in. 3.90 Gears

Gear, Ring and Pinion, 3.90:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, Set

Part Number: MGR-GM10-390

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Richmond Gear Pro Gear Ring and Pinion Sets 79-0027-1 GM 8.875 in. (12-bolt) passenger car 5.14 Gears

Richmond Gear Pro Gear Ring and Pinion Sets 79-0027-1 GM 8.875 in. (12-bolt) passenger car 5.14 Gears

Richmond Gear Pro Gear Ring and Pinion Sets 79-0027-1 GM 8.875 in. (12-bolt) passenger car 5.14 Gears

Gear, Ring and Pinion, 5.14:1 Ratio, GM, 12-Bolt Car, 4 Series, Set

Part Number: RMG-79-0027-1

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Powertrax No-Slip Traction Systems GM 8.2 Inch, BOP axle 9207822801

Powertrax No-Slip Traction Systems GM 8.2 Inch, BOP axle 9207822801

$40.00 Mail-In Rebate

Price after Manufacturer Rebate: $708.99

Rebate Expires: 12/31/2025

Get $40 back after rebate on this Powertrax Product! Go to https://www.richmondgear.com/rebate.pdf for details.

Get UP TO $55 back after rebate on select Powertrax Products! Go to https://www.richmondgear.com/rebate.pdf for details. Valid on purchases made between 11/1/25 and 12/31/25. Claims must be submitted within 30 days of purchase. Allow 6-8 weeks for processing. Valid in USA and Canada. Limit two qualifying purchases per household or address. This offer cannot be combined with other discounts or offers. Rebate intended for end consumer only.

Powertrax No-Slip Traction Systems GM 8.2 Inch, BOP axle 9207822801

Differential, No-Slip Traction System, 28-Spline, Buick, Oldsmobile, Pontiac, 8.2 in., Each

Part Number: PWT-92-0782-2801

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

    • $40.00 Mail-In Rebate

    Price after Manufacturer Rebate: $708.99

    Rebate Expires: 12/31/2025

    Get $40 back after rebate on this Powertrax Product! Go to https://www.richmondgear.com/rebate.pdf for details.

    Get UP TO $55 back after rebate on select Powertrax Products! Go to https://www.richmondgear.com/rebate.pdf for details. Valid on purchases made between 11/1/25 and 12/31/25. Claims must be submitted within 30 days of purchase. Allow 6-8 weeks for processing. Valid in USA and Canada. Limit two qualifying purchases per household or address. This offer cannot be combined with other discounts or offers. Rebate intended for end consumer only.

...Loading

Estimated Ship Date: Today

Richmond Gear Ring and Pinion Sets 49-0082-1 GM 8.2 in. BOP axle 3.55 Gears

Richmond Gear Ring and Pinion Sets 49-0082-1 GM 8.2 in. BOP axle 3.55 Gears

Richmond Gear Ring and Pinion Sets 49-0082-1 GM 8.2 in. BOP axle 3.55 Gears

Gear, Ring and Pinion, 3.55:1 Ratio, GM, 8.2 in., B or P Axle, 10-Bolt, 3 Series, Set

Part Number: RMG-4900821

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Motive Gear Performance Ring and Pinion Sets BP882411 GM 8.2 in. BOP axle 4.11 Gears

Motive Gear Performance Ring and Pinion Sets BP882411 GM 8.2 in. BOP axle 4.11 Gears

Motive Gear Performance Ring and Pinion Sets BP882411 GM 8.2 in. BOP axle 4.11 Gears

Ring and Pinion Gears, 4.11:1 Ratio, Standard Rotation, 8.20 in. Diameter, GM, BOP, Set

Part Number: MGR-BP882411

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Motive Gear Ring and Pinion Sets GM10-273 GM 8.5/8.6 in. 2.73 Gears

Motive Gear Ring and Pinion Sets GM10-273 GM 8.5/8.6 in. 2.73 Gears

Motive Gear Ring and Pinion Sets GM10-273 GM 8.5/8.6 in. 2.73 Gears

Gear, Ring and Pinion, 2.73:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: MGR-GM10-273

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Richmond Gear Pro Gear Ring and Pinion Sets 79-0029-1 GM 8.875 in. (12-bolt) passenger car 5.38 Gears

Richmond Gear Pro Gear Ring and Pinion Sets 79-0029-1 GM 8.875 in. (12-bolt) passenger car 5.38 Gears

Richmond Gear Pro Gear Ring and Pinion Sets 79-0029-1 GM 8.875 in. (12-bolt) passenger car 5.38 Gears

Gear, Ring and Pinion, 5.38:1 Ratio, GM, 12-Bolt Car, 4 Series, Set

Part Number: RMG-7900291

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Richmond Gear Ring and Pinion Sets 49-0017-1 GM 8.5/8.6 in. 3.08 Gears

Richmond Gear Ring and Pinion Sets 49-0017-1 GM 8.5/8.6 in. 3.08 Gears

Richmond Gear Ring and Pinion Sets 49-0017-1 GM 8.5/8.6 in. 3.08 Gears

Gear, Ring and Pinion, 3.08:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, 3 Series, Set

Part Number: RMG-4900171

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Yukon Gear & Axle Ring and Pinion Gears YGK2352

Yukon Gear & Axle Ring and Pinion Gears YGK2352

Yukon Gear & Axle Ring and Pinion Gears YGK2352

Ring and Pinion Gears and Installation Kit, 8.5" OLDSMOBILE GM 3.90 REAR R&P GEAR/ INSTALL KIT PACKAGE

Part Number: YGA-12594

Not Yet Reviewed

Estimated Ship Date: Dec 5, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 5, 2025 if ordered today

Richmond Gear Ring and Pinion Sets 69-0304-1 GM 8.875 in. (12-bolt) passenger car 4.10 Gears

Richmond Gear Ring and Pinion Sets 69-0304-1 GM 8.875 in. (12-bolt) passenger car 4.10 Gears

Richmond Gear Ring and Pinion Sets 69-0304-1 GM 8.875 in. (12-bolt) passenger car 4.10 Gears

Gear, Ring and Pinion, 4.10:1 Ratio, GM, 12-Bolt Car, 3 Series, Set

Part Number: RMG-6903041

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Richmond Gear Ring and Pinion Sets 69-0032-1 GM 8.875 in. (12-bolt) passenger car 4.56 Gears

Richmond Gear Ring and Pinion Sets 69-0032-1 GM 8.875 in. (12-bolt) passenger car 4.56 Gears

Richmond Gear Ring and Pinion Sets 69-0032-1 GM 8.875 in. (12-bolt) passenger car 4.56 Gears

Gear, Ring and Pinion, 4.56:1 Ratio, GM, 12-Bolt Car, 4 Series, Set

Part Number: RMG-6900321

5.0 out of 5 stars ( 1 )

...Loading

Yukon Gear & Axle Ring and Pinion Sets YG GM8.5OLDS-390 GM 8.5 in. O axle 3.90 Gears

Yukon Gear & Axle Ring and Pinion Sets YG GM8.5OLDS-390 GM 8.5 in. O axle 3.90 Gears

Yukon Gear & Axle Ring and Pinion Sets YG GM8.5OLDS-390 GM 8.5 in. O axle 3.90 Gears

Ring & Pinion set, 3.90:1 Ratio, GM "O" Axle, Set

Part Number: YGA-24688

Not Yet Reviewed

Estimated Ship Date: Dec 5, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 5, 2025 if ordered today

Powertrax Grip Pro Traction Systems GM 8.5 Inch GT201028

Powertrax Grip Pro Traction Systems GM 8.5 Inch GT201028

$40.00 Mail-In Rebate

Price after Manufacturer Rebate: $645.62

Rebate Expires: 12/31/2025

Get $40 back after rebate on this Powertrax Product! Go to https://www.richmondgear.com/rebate.pdf for details.

Get UP TO $55 back after rebate on select Powertrax Products! Go to https://www.richmondgear.com/rebate.pdf for details. Valid on purchases made between 11/1/25 and 12/31/25. Claims must be submitted within 30 days of purchase. Allow 6-8 weeks for processing. Valid in USA and Canada. Limit two qualifying purchases per household or address. This offer cannot be combined with other discounts or offers. Rebate intended for end consumer only.

Powertrax Grip Pro Traction Systems GM 8.5 Inch GT201028

Differential, Grip Pro Traction System, 28-Spline, GM 8.5 in., Each

Part Number: PWT-GT201028

Not Yet Reviewed

Estimated Ship Date: Nov 25, 2025 if ordered today

    • $40.00 Mail-In Rebate

    Price after Manufacturer Rebate: $645.62

    Rebate Expires: 12/31/2025

    Get $40 back after rebate on this Powertrax Product! Go to https://www.richmondgear.com/rebate.pdf for details.

    Get UP TO $55 back after rebate on select Powertrax Products! Go to https://www.richmondgear.com/rebate.pdf for details. Valid on purchases made between 11/1/25 and 12/31/25. Claims must be submitted within 30 days of purchase. Allow 6-8 weeks for processing. Valid in USA and Canada. Limit two qualifying purchases per household or address. This offer cannot be combined with other discounts or offers. Rebate intended for end consumer only.

...Loading

Estimated Ship Date: Nov 25, 2025 if ordered today

Richmond Gear Ring and Pinion Sets 69-0306-1 GM 8.875 in. (12-bolt) passenger car 4.56 Gears

Richmond Gear Ring and Pinion Sets 69-0306-1 GM 8.875 in. (12-bolt) passenger car 4.56 Gears

Richmond Gear Ring and Pinion Sets 69-0306-1 GM 8.875 in. (12-bolt) passenger car 4.56 Gears

Gear, Ring and Pinion, 4.56:1 Ratio, GM, 12-Bolt Car, 3 Series, Set

Part Number: RMG-6903061

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Modal Header

Call To Order

This is a custom order part. You can order this part by Contacting Us.

Summit Racing Speedcard. Synchrony Car Care.

Summit Racing Equipment SpeedCard

Jumpstart Your Next Project!

View Details|See if you Prequalify