2003 GMC SIERRA-1500-HD Transmission & Drivetrain

Automatic Transmission Pan, Deep, 2 qts. Capacity Increase, Aluminum, Black Powdercoated, GMC, Each

Part Number: AFE-46-70242

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Internal Wiring Harness, Upgrade, GM, Style Harness, Each

Part Number: TCI-276610

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Estimated Ship Date: Oct 24, 2025 if ordered today

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Wheel Hub Fasteners, Bolts, 14mm x 1.50 Thread, Steel, Natural, Front, Cadillac, Chevy, GMC, Hummer, Set of 3

Part Number: RNB-917-517

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

Pump Gear, 13-Vane, Billet Rotor, Automatic Transmission Pumps, GM, 4L60E, THM700-R4, Each

Part Number: TCI-373401

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Estimated Ship Date: Oct 22, 2025 if ordered today

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Ring and Pinion Gears, GM 8.5/8.6 in., 4.88:1 Ratio, 30-spline, Standard, Must Use 2.73:1 or Numerically Higher Ratio Carrier, GM 8.5/8.6 in., Set

Part Number: SVL-2023704

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Pinion Bearing, 1.250 in. i.d., BMW, Chevy, GMC, Dodge, Plymouth, Ford, Mercury, International, Jeep, Each

Part Number: TMK-HM88542

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Automatic Transmission Servo Piston, 4L80, 4L85, Chevrolet, GMC, Kit

Part Number: ADO-24223081

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Differential Carrier, Positraction, Clutch-type, 33-spline, Chevy, GMC, Hummer, Each

Part Number: SUM-730988

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Wheel Bearings, Tapered Roller, Steel, 1.313 in. Inside Diameter, 2.687 in. Outside Diameter, Each

Part Number: FWB-DB0669

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Yoke, Driveshaft, Replacement, Cadillac, Chevrolet, GMC, Hummer, Truck, Each

Part Number: ADO-12471638

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Bearing Race, Differential Pinion, 3.750 in. Diameter, Cadillac, Each

Part Number: TMK-HM804810

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Differential Bearing, Tapered Roller, Steel, Stock Replacement, GM, Each

Part Number: ADO-S1420

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Differential Ring And Pinion Set

Part Number: RNB-697-303

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Estimated Ship Date: Oct 6, 2025 if ordered today

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Differential, Eaton Detroit Locker, 33-Spline, GM, 9.5 in., 14-Bolt, Each

Part Number: ETN-225C135A

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Transmission Control Solenoid, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: SMP-TCS39

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Differential Crush Sleeve, Steel, Each

Part Number: MGR-14012691

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Universal Joint Strap Kit, Steel, Buick, Cadillac, Chevrolet, GMC, Oldsmobile, Pontiac, Pair

Part Number: ADO-45U0505

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Pinion Nut Washer, GM, Each

Part Number: YGA-33167

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Ring and Pinion Gears, 5.13:1 Ratio, 29-spline, Standard Rotation, Thick Cut Ring Gear, Dana 60, Set

Part Number: YGA-24607

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Pinion Nut, Steel, Each

Part Number: MGR-1260823

4.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

Transfer Case Component, Transfer Case To Transmission Extension Gasket, Cadillac, Chevy, GMC, Hummer, Each

Part Number: RNB-917-562

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

Differential Cover, 14-bolt, A356 Aircraft Grade Alloy, Black Anodized, AAM 11.5 in. 14-bolt, Each

Part Number: BMM-11317

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Estimated Ship Date: Oct 3, 2025 if ordered today

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Ring & Pinion Gear Set GM 10 Bolt 8.5" / 3.90 Ratio

Part Number: SVL-2020954

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Sep 29, 2025 if ordered today

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Gear, Ring and Pinion, 3.73:1 Ratio, GM, 9.5 in., 14-Bolt, 1997-2013, With 33 Spline C-clip Axles, Set

Part Number: YGA-24166

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 16, 2025 if ordered today

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Ring & Pinion Gear, 5.13 Ratio, GM, 9.5 in., 14-Bolt, Set

Part Number: YGA-24170

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 15, 2025 if ordered today

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