2012 GMC SIERRA-1500 Transmission & Drivetrain

Automatic Transmission Bushings, Extension Housing, GM Transmission, Each

Part Number: DUR-GMT-3-2TG

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Estimated Ship Date: Today

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 Carrier Bearing, Steel, Each

Part Number: TMK-SET42

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Torque Converters, Remanufactured, OEM Style, 1.75 in. Slotted Hub, 3 Pad Mount, 12.50 in. Dia., 1,600-1,800 Stall, 30 Spline Input, Chevy, GMC, Each

Part Number: CCV-TQBU45

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Estimated Ship Date: Dec 23, 2025 if ordered today

• Core Charge $45.00
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Gear, Ring and Pinion, 4.30:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: MGR-G885430

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Gear, Ring and Pinion, 4.56:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: MGR-G885456

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Ring and Pinion Gear Installation Kit, Minimum Installation Kit, 30 Spline, GM 8.6 in., Kit

Part Number: YGA-12059

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Nov 28, 2025 if ordered today

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Axle Seal, Steel/Rubber, Cadillac, Chevrolet, GMC, Oldsmobile, Pontiac, Each

Part Number: YGA-30108

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Ring and Pinion Gear Installation Kit, Master Overhaul, 30 Spline, GM 9.5 in., Kit

Part Number: YGA-14097

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 28, 2025 if ordered today

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Axle Shaft, 30-Spline, 34.250 in. Length, Cadillac, Chevy, GMC, 8.5 in., Rear, Each

Part Number: RMG-92-25173

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 17, 2025 if ordered today

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Ring and Pinion Installation Kit, GM 8.625 in., Kit

Part Number: MGR-R10RLAT

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Driveshaft, Balanced, Assembled, Rear, Aluminum, Length 75.375 in., Diameter 4.000 in., Each

Part Number: RNB-946-337

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Differential Carrier Bearing, Races Included, Koyo Bearing, Steel, Set

Part Number: MGR-706016XR

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U-Joint, Spicer 1350 To GM 3RL/S44/Mechanics 3/American Axle 1344 Combination, Greasable, Steel, Each

Part Number: YGA-42001

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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

Part Number: TMK-HM804810

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Transfer Case Shift Linkage, GM Genuine Parts, Cadillac, Chevrolet, GMC, Each

Part Number: ADO-22847405

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

Cross Pin, GM, 10-Bolt, 8.5 in. Each

Part Number: MGR-14006401

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Estimated Ship Date: Today

Gear, Ring and Pinion, 4.56:1 Ratio, GM, 9.5 in., 14-Bolt, Truck, Set

Part Number: MGR-GM9-5-456

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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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

Universal Joint, Steel, Buick, Cadillac, Chevrolet, GMC, Each

Part Number: ADO-23104840

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Gear, Ring and Pinion, 4.88:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, 3 Series, Set

Part Number: RMG-6901691

4.6 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Differential Clutch, Steel Pack, Rear, Posi, GM, 8.875 in., Set

Part Number: YGA-16041

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Estimated Ship Date: Nov 28, 2025 if ordered today

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Transmission Filter, Replacement, Each

Part Number: WIX-58904

4.75 out of 5 stars ( 8 )

Estimated Ship Date: Today

Torque Converter, Holeshot, 2,800-3,200 rpm Stall Range, Chevy, 700R4, Each

Part Number: BMM-70421

Not Yet Reviewed

Estimated Ship Date: Today

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Differential Cross Shaft, Steel, 0.795 in. Diameter, Each

Part Number: YGA-33401

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today