2003 GMC SIERRA 1500 HD Transmission & Drivetrain

Hays Twister 3/4 Race Torque Converter 1998- UP GM, 4L60E/4L65E, 3200-3600 RPM stall

Part Number: HAY-97-1H32Q

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Combo, Differential, Eaton Truetrac, Ring and Pinion, 4.10:1 Ratio, Install Kit, 30 Spline, Rear, GM 8.5 in./8.6, Kit

Part Number: CMB-14-0082

Not Yet Reviewed

Estimated Ship Date: Today

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Automatic Transmission Pans, Stock Style, Steel, Black, Drain Plug, Cadillac, Chevy, GMC, Workhorse, Each

Part Number: RNB-265-810

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

Wheel Bearing and Hub Assembly, Gold, Front, Chevrolet, GMC, Hummer, Each

Part Number: ADO-SP580310A

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Transmission Dipstick, Braided Stainless Steel, Black Housing, Black Handle, Chevy, 4L80E, Each

Part Number: LOK-XTD-34L80TM

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Transmission Dipstick, Braided Stainless Steel, Natural, Firewall Mount, 36 in. Length, 4L80E, Each

Part Number: LOK-TD34L80FM36

3.8 out of 5 stars ( 5 )

Estimated Ship Date: Today

• Free Shipping

Wheel Hub and Bearing Assembly, Front, Chevy, GMC, Hummer, Each

Part Number: MOG-515058

4.63 out of 5 stars ( 49 )

Estimated Ship Date: Today

• Free Shipping
• $20 Summit Bucks

Wheel Hub and Bearing Assembly, Front, Chevy, GMC, Hummer, Each

Part Number: TMK-SP580310

4.63 out of 5 stars ( 19 )

Estimated Ship Date: Today

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Ring and Pinion Installation Kit, Master Kit, GM 8.5 in.; Incl. Bearing Kit Plus Ring Gear Bolts/Pinion Shi

Part Number: MGR-R10RLMK

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Flexplate Spacer, Steel, Use When Installing Early GM Transmission to an LS Engine, Each

Part Number: ADO-12563532

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Gear, Ring and Pinion, 3.42:1 Ratio, GM, 9.5 in., 14-Bolt, Truck, Set

Part Number: MGR-GM9-5-342

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Automatic Transmission Pan, Deep, Aluminum, Natural, GM, 700R4, 4L60E, Each

Part Number: TCI-378000

3.73 out of 5 stars ( 15 )

Estimated Ship Date: Today

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Differential, GM 8.5/8.625 in., Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Oldsmobile, Saab, Rear, Each

Part Number: ADO-84554713

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Flywheel Fasteners, Dorman, Direct Replacement, Flexplate or Flywheel Bolts, Steel, Zinc Coated, Silver, M11 x 1.5 Thread, 29.5 mm Long, 6-piece, Set

Part Number: RNB-14112

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Torque Converters, Reman., OEM Style, Heavy Duty, 2 in. Flats Hub, 13 1/2 in. Dia., 2,200 Stall, 35 Spline Input, Cadillac, Chevy, GMC, Isuzu, Each

Part Number: CCV-TQBU54HD

Not Yet Reviewed

Estimated Ship Date: Today

• Core Charge $100.00
• Free Shipping

Driveshaft Support Carrier Bearings, Replacement, Checker, Chevrolet, Dodge, Ford, GMC, International, Isuzu, Olds, Plymouth, Studebaker, Each

Part Number: ADO-HB88107A

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Gear, Ring and Pinion, 4.10:1 Ratio, GM, 9.5 in., 14-Bolt, Truck, Set

Part Number: MGR-GM9-5-410

3.4 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Automatic Transmission Pan, Stock, Aluminum, Polished, GM, 700R4, 4L60E, Kit

Part Number: TCI-378010

4.43 out of 5 stars ( 14 )

Estimated Ship Date: Today

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Transmission Pan, Deep, Aluminum, Natural, GM, 4L80E, Each

Part Number: BMM-70295

4.64 out of 5 stars ( 22 )

Estimated Ship Date: Today

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Automatic Transmission, Remanufactured, 4L80E, Four Gears, Stock Aluminum Pan Style, Torque Converter, Cadillac, Chevrolet, GMC, V8, Each

Part Number: VRE-1659A-82

Not Yet Reviewed

Estimated Ship Date: Mar 11, 2026 if ordered today

• Core Charge $570.00
• Drop Ship
• Free Shipping
• Special Order

Gear, Ring and Pinion, 4.88:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: MGR-G885488

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Differential Cover, 14-bolt, Steel, Natural, GM 9.5 in., Each

Part Number: YGA-32333

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

Automatic Transmission Governor Cover, Stainless Steel, Natural, 700R4, TH350, TCI Logo, Each

Part Number: TCI-316860

3.67 out of 5 stars ( 12 )

Estimated Ship Date: Today

Axle Shafts, New CV Drive Axles, Front, Chevrolet, GMC, Hummer, Each

Part Number: AAZ-66-1325

4.43 out of 5 stars ( 7 )

Estimated Ship Date: Today

Ring and Pinion-GM 8.5/8.625

Part Number: MGR-GM10-373A

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping