BUICK Differential & Rear-End Components

Ring and Pinion Gears and Installation Kit, 8.5" GM 3.90 REAR R&P GEAR/ INSTALL KIT PACKAGE with AK 1563 AXLE BRGS (2.25" OD)

Part Number: YGA-12623

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Estimated Ship Date: Nov 21, 2025 if ordered today

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Ring and Pinion Gears and Installation Kit, 8.5" GM 4.11 REAR R&P GEAR/ INSTALL KIT PACKAGE with AK 1563 AXLE BRGS (2.25" OD)

Part Number: YGA-12624

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Estimated Ship Date: Nov 21, 2025 if ordered today

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12P & 12T GM NOTCHED X/PIN SHAFT STD & POSI

Part Number: YGA-33429

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Estimated Ship Date: Nov 21, 2025 if ordered today

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Ring and Pinion Gears,USA Standard 7.5" GM, 3.73 Ratio Rear Ring & Pinion GearInstall Kit 26 Spline and 2.25" OD Axle Bearings & Seals

Part Number: SPZ-10697

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Estimated Ship Date: Nov 6, 2025 if ordered today

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Ring and Pinion Gear Installation Kit, Bearing Overhaul, 30 Spline, GM 8.875 in., Kit

Part Number: YGA-11054

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Estimated Ship Date: Nov 21, 2025 if ordered today

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Ring and Pinion Installation Kit, Basic, GM 8.5 in., Front/Rear, Kit

Part Number: MGR-R10RT

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Estimated Ship Date: Nov 10, 2025 if ordered today

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Differential Ring Gear Spacer, Ring Gear Spacer

Part Number: MGR-075050C

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Estimated Ship Date: Nov 10, 2025 if ordered today

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

Part Number: PWT-GT201028

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Estimated Ship Date: Nov 10, 2025 if ordered today

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Differential Carrier Bearings

Part Number: NAL-12471330

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Estimated Ship Date: Feb 16, 2026 if ordered today

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pinion spacer

Part Number: NAL-12479162

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Estimated Ship Date: Feb 16, 2026 if ordered today

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4WD Actuator GM

Part Number: SDH-10033321

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Estimated Ship Date: Nov 20, 2025 if ordered today

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Performance Mini Spool (GM 7.5 - 26 Spine)

Part Number: SDH-10015364

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Estimated Ship Date: Nov 20, 2025 if ordered today

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Performance Mini Spool (GM 8.875 - 30 Spline)

Part Number: SDH-10015379

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Estimated Ship Date: Nov 20, 2025 if ordered today

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Ring and Pinion Gears, 4.88:1 Ratio, 30-spline, Standard Rotation, GM 8.875 in. Passenger Car, Set

Part Number: SVL-2023905

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Estimated Ship Date: Nov 3, 2025 if ordered today

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Differential Ring and Pinion; GM 7.5 - 2.73 Ratio

Part Number: SVL-10004593

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Estimated Ship Date: Nov 3, 2025 if ordered today

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Spider Gears, Side Gears, Cross Shaft Pin, 28 Spline, Open, Rear, GM 7.5 in., GM 7.625 in., Kit

Part Number: SVL-2023876

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Estimated Ship Date: Nov 3, 2025 if ordered today

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REAR AXLE SHAFT

Part Number: SDH-10024298

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Estimated Ship Date: Nov 20, 2025 if ordered today

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REAR AXLE SHAFT

Part Number: SDH-10024299

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Estimated Ship Date: Nov 20, 2025 if ordered today

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Axel Housing, Steel, Natural, Ford 9 in., Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Each

Part Number: AAF-ALL68759

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Estimated Ship Date: Nov 28, 2025 if ordered today

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Axle 8.2" & 8.5" GM REAR, '73-'88 PASSENGER CARS, 30-1/2", 28spl, 2.780" PILOT, 1563 BRG, 1 SIDE

Part Number: SPZ-11952

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Estimated Ship Date: Nov 6, 2025 if ordered today

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8.5" GM REAR w/Aftermarket_AG-PRO,_YDG,_XHD-Std,_EATorDET BRG & SEAL KIT, KOYO BRGS

Part Number: SPZ-58050

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Estimated Ship Date: Nov 6, 2025 if ordered today

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

Part Number: SPZ-36346

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Estimated Ship Date: Nov 6, 2025 if ordered today

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Ring and Pinion Gears and Installation Kit, 8.5" GM 3.90 REAR R&P GEAR/ INSTALL KIT PACKAGE with 28spl POSI & AK 1563 AXLE BRGS (2.25" OD)

Part Number: YGA-12629

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Estimated Ship Date: Nov 21, 2025 if ordered today

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Ring and Pinion Gears, 5.38:1 Ratio, 30-spline, Standard Ring Gear Rotation, GM 8.5 in., GM 8.6 in., Set

Part Number: SPZ-36221

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Estimated Ship Date: Nov 6, 2025 if ordered today

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STANDARD DIFF BEARING & SEAL KIT - 1999-2008 MODEL YEARS WITH GM 8.5 & 8.6 AXLE

Part Number: SDH-10038956

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Estimated Ship Date: Nov 24, 2025 if ordered today

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