2003 GMC SIERRA 1500 HD Transmission & Drivetrain - In Stock Filter Options - Vendor In Stock Filter Options

USA Standard Gear Ring and Pinion Sets ZG GM9.5-488 GM 9.5 in. 4.88 Gears

USA Standard Ring & Pinion gear set for GM 9.5" in a 4.88 ratio

Part Number: SPZ-36227

Not Yet Reviewed

Estimated Ship Date: Feb 20, 2026 if ordered today

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Estimated Ship Date: Feb 20, 2026 if ordered today

Yukon Gear & Axle C-Clips YSPCC-008

Axle C-Clip, Steel, Natural, GM 9.5 in., Each

Part Number: YGA-33081

Not Yet Reviewed

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Richmond Gear EXCel Ring and Pinion Sets GM95342 GM 9.5 in. 3.42 Gears

Ring and Pinion Kit

Part Number: RMG-GM95342

Not Yet Reviewed

Estimated Ship Date: Feb 24, 2026 if ordered today

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Estimated Ship Date: Feb 24, 2026 if ordered today

Silver Sport Manual Transmission Bellhousings BHG-12005A

Bellhousing Chevy LS Kit

Part Number: IST-BHG-12005A

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 11, 2026 if ordered today

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Estimated Ship Date: Mar 11, 2026 if ordered today

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Summit Racing™ Manual Transmission Bellhousings SUM-700172

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ACDelco GM Genuine Parts Transfer Case Replacement Parts 15665313

Transfer Case Extension Housing Bushing, Buick, Cadillac, Chevrolet, GMC, Isuzu, Oldsmobile, Saab, Each

Part Number: ADO-15665313

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Anchor Industries Driveshaft Center Support Bearings 6071

Driveshaft Support Carrier Bearings, Anchor Industries Driveshaft Center Support Bearings, Rubber, Black Bushing, Each

Part Number: ANI-6071

Not Yet Reviewed

Estimated Ship Date: Feb 24, 2026 if ordered today

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Estimated Ship Date: Feb 24, 2026 if ordered today

Motive Gear Differential Bearing Kits R8.2RIFSL

Ring and Pinion Installation Kit, GM, 8.25 in. IFS, Kit

Part Number: MGR-R82RIFSL

Not Yet Reviewed

Estimated Ship Date: Feb 24, 2026 if ordered today

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Estimated Ship Date: Feb 24, 2026 if ordered today

Chevrolet Performance Slip Yokes 12471638

YOKE

Part Number: NAL-12471638

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Dura-Bond Automatic Transmission Bushings 34005F

Transmission Bushing, Actual OD - 2.0245; Length - 0.995; Max Wall - 0.0673

Part Number: DUR-34005F

Not Yet Reviewed

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Dorman Driveshafts 938-025

Driveshaft, One-Piece, Steel, Front, Chevy, GMC, Each

Part Number: RNB-938-025

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 25, 2026 if ordered today

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Estimated Ship Date: Feb 25, 2026 if ordered today

B&M Holeshot 2,800-3,200 Stall Torque Converter 70442

Torque Converter, Holeshot, 2,800-3,200 rpm Stall Range, Chevy, Pontiac, LS1 Engine from 1997 to 2003 with a 4L60E, 4L65E, Each

Part Number: BMM-70442

1.0 out of 5 stars ( 2 )

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

GMB Wheel Bearing and Hub Assemblies 730-0231

Hub Bearing

Part Number: GMB-730-0231

Not Yet Reviewed

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Powertrax Grip Pro Traction Systems GM 9.5 Inch GT209533

Differential Carriers, Grip Pro Traction System, 33 Spline, 9.5 in. GM, Each

Part Number: PWT-GT209533

Not Yet Reviewed

Estimated Ship Date: Mar 25, 2026 if ordered today

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Estimated Ship Date: Mar 25, 2026 if ordered today

Dorman Transmission Shifter Linkage Bushings 14073

Transmission Shifter Cable Bushing, Plastic, White, Chevrolet, GMC, Isuzu, Oldsmobile, Each

Part Number: RNB-14073

Not Yet Reviewed

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Yukon Gear & Axle U-Joints YUJ795

Yukon Mechanics 3R Lifetime Series U/Joint. 2.556" span ring span, 1.125" cap diameter. Inside snap ring.

Part Number: YGA-42020

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Dorman 30 Spline Differential Carriers GM 8.5/8.625 Inch 697-909

Differential Carrier, Stock Replacement, Cast Iron, GM 8.5/8.625 in., 30-Spline, Buick, Cadillac, Chevrolet, GMC, Each

Part Number: RNB-697-909

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

Dana Spicer Drivetrain Products Driveshaft Support Carrier Bearings 212032-1X

Center Bearing 1330 Series

Part Number: SDH-212032-1X

Not Yet Reviewed

Estimated Ship Date: Mar 13, 2026 if ordered today

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Estimated Ship Date: Mar 13, 2026 if ordered today

Dorman U-Joint Repair Kits 81001

U-Joint Strap and Bolts, Each

Part Number: RNB-81001

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Dorman Transfer Case Housings 926-891

Transfer Case Housing, Adapter, Chevy, Cadillac, GMC, Each

Part Number: RNB-926-891

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Dorman Pre-Pressed Wheel Hub Assemblies 951-067

Wheel Bearing and Hub Assembly, Steel, Natural, with Studs, Chevy, GMC, Hummer, Front, Each

Part Number: RNB-951-067

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

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Estimated Ship Date: Feb 25, 2026 if ordered today

ACDelco Gold Universal Joints 19473223

Universal Joint, Gold, Greasable, Steel, Round Plain, for Infiniti, for Nissan, Chevy, Dodge, Ford, GMC, Lincoln, Mercury, Ram, SRT, Toyota, Each

Part Number: ADO-45U0109

Not Yet Reviewed

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Motive Gear Crush Sleeves 14012691

Differential Crush Sleeve, Steel, Each

Part Number: MGR-14012691

Not Yet Reviewed

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ATP Automatic Transmission Control Solenoids JE-53

Automatic Transmission Control Solenoids, Replacement, AM General, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Oldsmobile, Pontiac, Workhorse, Each

Part Number: ATP-JE-53

Not Yet Reviewed

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Yukon Gear & Axle Ring and Pinion Sets YG D60-488 Dana 60 4.88 Gears

Ring and Pinion Gears, 4.88:1 Ratio, 29-spline, Standard Ring Gear Rotation, Dana 60, Set

Part Number: YGA-24062

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

ATP Automatic Transmission Inline Filter Kits IL-150

Automatic Transmission Filters, Remote Mount, ATP Automatic Transmission Inline Filter Kits, 5/16 in. Diameter Lines, Sold as a Kit

Part Number: ATP-IL150

Not Yet Reviewed

Estimated Ship Date: Feb 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today