BUICK Differential & Rear-End Components

Ring and Pinion Gears and Installation Kit, 12P 8.875" GM 3.73 REAR R&P GEAR/ INSTALL KIT PACKAGE with 30spl POSI & AK 1563 AXLE BRGS (2.25" OD)

Part Number: YGA-12613

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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 Shaft Lock Bolt, Steel, Cadillac, Chevy, GMC, Ford, Mercury, Each

Part Number: RNB-81048

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Today

Gear, Ring and Pinion, 3.90:1 Ratio, GM 8.875 in. (12-Bolt), Set

Part Number: RNB-697-139

Not Yet Reviewed

Estimated Ship Date: Apr 8, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Ring and Pinion Gears and Installation Kit, 8.5" GM 3.73 REAR R&P GEAR/ INSTALL KIT PACKAGE with AK 1563 AXLE BRGS (2.25" OD)

Part Number: YGA-12622

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Ring and Pinion Gears and Installation Kit, 8.5" GM 3.42 REAR R&P GEAR/ INSTALL KIT PACKAGE with AK 1563 AXLE BRGS (2.25" OD)

Part Number: YGA-12621

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Pinion depth shim kit for Toyota8", GM 7.5", 8.2" & 12 bolt truck

Part Number: YGA-55064

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Ring and Pinion Installation Kit, 30 Spline, GM 8.5 in., Kit

Part Number: YGA-13069

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Differential Drain Plug, Rear Axle Position, Internal Square Drive Head, Steel, 1/2 in. NPT Threads, Buick, Chevy, Oldsmobile, Pontiac, Each

Part Number: OPG-CH28892

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Ring and Pinion Gears and Installation Kit, 8.2" BOP 3.55 RATIO REAR R&P GEAR/ INSTALL KIT PACKAGE with 28spl POSI

Part Number: YGA-12583

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 20, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Gear, Ring and Pinion, 4.56:1 Ratio, GM 7.5/7.625 in., Set

Part Number: RNB-697-719

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Plug Fitting, GM Genuine Parts Multi-Purpose Threaded Plug, Steel, Natural, Buick, Cadillac, Chevrolet, GMC, Pontiac, Saturn, Suzuki, Each

Part Number: ADO-19256068

Not Yet Reviewed

Estimated Ship Date: Today

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

Part Number: MGR-G885273

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Free Shipping

Spider Gears, Internal Kit, Front or Rear, Side Gears, Cross Shaft Pin and Bolt, GM, 8.5 in., 30 Spline, Kit

Part Number: YGA-16055

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Free Shipping

Ring and Pinion Kit

Part Number: RMG-GM75308

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

USA Standard Ring & Pinion gear set for GM 12 bolt car in a 3.90 ratio

Part Number: SPZ-36169

Not Yet Reviewed

Estimated Ship Date: Apr 3, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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

Ring and Pinion Installation Kit, Master Kit, GM 7.5 in., 7.625 in., Kit

Part Number: MGR-R75GRMKT

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

• Free Shipping

Ring and Pinion Gears,USA Standard 7.5"/7.625" GM, 3.73 Ratio Rear Ring & Pinion GearInstall Kit 2.25" OD Axle Bearings & Seals

Part Number: SPZ-10693

Not Yet Reviewed

Estimated Ship Date: Apr 3, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Bearing, Pinion, 1.312 in. Inside Diameter, Each

Part Number: NTL-M88048

Not Yet Reviewed

Estimated Ship Date: Today

Differential, Auburn, Grip-N-Loc, Limited Slip, 26-Spline, GM, 7.5 in., 7.625 in., Each

Part Number: AUB-546044

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Differential, Eaton Detroit Locker, 28-Spline, GM, 8.5 in., 3-Series, Each

Part Number: ETN-187C149A

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Gear, Ring and Pinion, EXCel, 3.42:1 Ratio, GM, 8.875 in., 12-Bolt Car, Set

Part Number: RMG-12BC342

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 7, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Differential Vent, Round Head Style, Plastic, White, Buick, Chevy, Oldsmobile, Pontiac, Each

Part Number: OPG-C220128

2.5 out of 5 stars ( 4 )

Estimated Ship Date: Today

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

Part Number: RMG-GM75410TK

Not Yet Reviewed

Estimated Ship Date: Apr 6, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order