CHEVROLET Chevy big block Mark IV Differential & Rear-End Components

Differential Cover, Steel, Chrome, GM, 8.5 in., 10-Bolt, Kit

Part Number: MRG-9891

4.17 out of 5 stars ( 6 )

Estimated Ship Date: Today

Differential Cover Bolts, Steel, Black, Hex, Each

Part Number: SDH-34279

Not Yet Reviewed

Estimated Ship Date: Today

Ring and Pinion Gears, 3.73:1 Ratio, 26-spline, Standard Ring Gear Rotation, Dana 44, Set

Part Number: SPZ-36040

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Ring and Pinion Gears, 4.56:1 Ratio, 26-spline, Standard Ring Gear Rotation, Dana 44, Set

Part Number: SPZ-36045

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Differential Pinion Bearing, 1.375 in. Inside Diameter, Each

Part Number: TMK-HM88649

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Gear, Ring and Pinion, 3.54:1 Ratio, 1.375 in. Pinion, 26 Spline, 8.500 in. Ring Gear, Dana 44, Set

Part Number: YGA-24030

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Differential Carrier Rebuild Kits and Spider Gears, GM 8.875 in. (12-bolt) Car/Truck, Side Gears, Rear, Limited Slip, Eaton, Posi, 30-spline, Kit

Part Number: SVL-2023882

4.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

Differential Pinion Bearing Kit, GM 8.875 in. Truck, Koyo Bearings, Chevy, GMC, Kit

Part Number: MGR-R12RPK

Not Yet Reviewed

Estimated Ship Date: Today

Differential Carrier Rebuild Kits and Spider Gears, Spider Gear Sets, GM 8.875 in. (12-bolt), Car/Truck, 30-spline, Buick, Chevy, GMC, Pontiac, Kit

Part Number: SPZ-39021

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

• Free Shipping

Differential Carrier Rebuild Kits and Spider Gears, GM 8.5 in., Side Gears, 28-spline, 10-bolt, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Kit

Part Number: SPZ-39026

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Free Shipping

Differential, Posi Performance, Limited Slip, 30-Spline, 3.73 Gear Ratios, GM, 12-Bolt, Each

Part Number: HUU-02-125

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Free Shipping

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

• Free Shipping

Gear, Ring and Pinion, 4.10:1 Ratio, GM, 7.5 in./7.625 in., 10-Bolt, 3 Series, Set

Part Number: RMG-6903221

4.0 out of 5 stars ( 7 )

Estimated Ship Date: Today

• Free Shipping

Ring and Pinion Kit

Part Number: RMG-GM75308

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Ring and Pinion Gears, 3.73:1 Ratio, 30-spline, Standard Ring Gear Rotation, GM 8.875 in. Passenger Car, Set

Part Number: SPZ-36167

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Axle Shaft, Dana 44, 30 Inner Spline, 36.130 in. Length, Front Driver Side, GM, Each

Part Number: SDH-27902-2X

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Free Shipping

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

Part Number: RNB-697-812

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Free Shipping

Differential, Grip Pro Traction System, 30-Spline, GM 8.875 in. 12-Bolt Truck, Each

Part Number: PWT-GT248730

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 29, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order
• Mfr. Rebate

$40.00 Mail-In Rebate

Price after Manufacturer Rebate: $896.99

Rebate Expires: 12/31/2025

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

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. Show Less

×

Gear, Ring and Pinion, 3.73:1 Ratio, 1.438 in. Pinion, 27 Spline, 7.500 in. Ring Gear, GM 7.5/7.6 in., Set

Part Number: YGA-24146

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Free Shipping

Axle Shaft, 30-Spline, 6 x 5.50 in. Bolt Circle, 30.75 in. Length, Chevy, GMC, Rear, Each

Part Number: YGA-21284

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Axle Shaft, OEM Replacement, 30-Spline, 31.813 in. Length, Chevy, GMC, 8.6 in., Rear, Each

Part Number: RMG-92-25130

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Ring and Pinion, GM 10.5 in., 5.38:1 Ratio, Standard Rotation, Requires a 4.10:1 Ratio Carrier Set

Part Number: MGR-GM105-538X

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Differential, Lock-Right, Open Case, Locker, 35-Spline, Dana 80, Each

Part Number: PWT-2810-LR

3.6 out of 5 stars ( 5 )

Estimated Ship Date: Dec 29, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order
• Mfr. Rebate

$35.00 Mail-In Rebate

Price after Manufacturer Rebate: $566.99

Rebate Expires: 12/31/2025

Get $35 back after rebate on this Powertrax Product! Go to https://www.richmondgear.com/rebate.pdf for details. ...Read More

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. Show Less

×

Pinion Bearing, 1.437 in. i.d., BMW, Buick, Cadillac, Chevy, GMC, Chrysler, Dodge, Mercedes-Benz, Volvo, Each

Part Number: TMK-HM89449

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Ring and Pinion Complete Kits, 3.07:1 Ratio, 26-spline, Standard Rotation, Dana 44, Chevy, Dodge, Ford, GMC, International, Isuzu, Jaguar, Jeep, Kit

Part Number: SDH-706017-1X

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping