2012 GMC SIERRA-1500 Transmission & Drivetrain

Gear, Ring and Pinion, 3.90:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, 3 Series, Set

Part Number: RMG-4900341

4.67 out of 5 stars ( 9 )

Estimated Ship Date: Monday 9/15/2025

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Wheel Bearing and Hub Assembly, Steel, Natural, Cadillac, Chevy, GMC, Each

Part Number: ADO-515097

Not Yet Reviewed

Estimated Ship Date: Monday 9/15/2025

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Hays Twister 3/4 Race Torque Converter 1984- 97 GM, 4L60/4L60E/700R4, 2400- 2800 RPM stall

Part Number: HAY-97-1G24Q

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 9/15/2025

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Differential Cover, 10-bolt, Aluminum, Polished, GM 8.2 in., GM 8.5 in., GM 8.6 in., Each

Part Number: YGA-32030

3.5 out of 5 stars ( 8 )

Estimated Ship Date: Monday 9/15/2025

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Ring and Pinion Gears, EXCel, GM 8.25 in., IFS, 4.10:1 Ratio, 30-spline, Reverse Rotation, Front, GM 8.25 in., IFS, Cadillac, Chevrolet, GMC, Set

Part Number: RMG-GM825410

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 9/15/2025

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Gear, Ring and Pinion, 3.42:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: MGR-G885342

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 9/15/2025

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Gear, Ring and Pinion, EXCel, 4.56:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, Set

Part Number: RMG-GM85456

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 9/15/2025

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

Part Number: AAZ-66-1430

3.2 out of 5 stars ( 5 )

Estimated Ship Date: Monday 9/15/2025

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: Monday 9/15/2025

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

Part Number: MGR-R10RLAMKT

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 9/15/2025

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Transmission Dipstick, Braided Stainless Steel, Black, Bellhousing Mount, Chevy, 4L60E, Each

Part Number: LOK-XTD-34L60ETM

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 9/15/2025

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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: Monday 9/15/2025

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Bearing, Pinion, 1.312 in. Inside Diameter, Each

Part Number: TMK-M88048

5.0 out of 5 stars ( 12 )

Estimated Ship Date: Monday 9/15/2025

Differential Carrier Bearings, Standard Replacement, 1.625 in. Bore, AMC, GM, Mopar, Jeep, International, Studebaker, Hummer, Each

Part Number: TMK-LM501349

3.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 9/15/2025

Automatic Transmission Filter, Direct Fit, 6L50E,6L80E, Cadillac, Chevy, GMC, Hummer, Each

Part Number: SUM-G19016

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 9/15/2025

USA Standard Master Overhaul kit for the '09 and newer GM 8.6" differential

Part Number: SPZ-37060

Not Yet Reviewed

Estimated Ship Date: Monday 9/15/2025

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Gear, Ring and Pinion, EXCel, 3.73:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, Set

Part Number: RMG-GM85373

4.09 out of 5 stars ( 11 )

Estimated Ship Date: Monday 9/15/2025

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Automatic Transmission Filters, Direct Fit, Rubber/Steel Gasket Material, Chevy, GMC, Cadillac, Pontiac, Hummer, Kit

Part Number: ATP-B239

3.4 out of 5 stars ( 5 )

Estimated Ship Date: Monday 9/15/2025

Gear, Ring and Pinion, 3.42:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, 3 Series, Set

Part Number: RMG-4902781

5.0 out of 5 stars ( 9 )

Estimated Ship Date: Monday 9/15/2025

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Automatic Transmission Filter, Buick, Cadillac, Chevrolet, GMC, Pontiac, Saab, Each

Part Number: ADO-24208576

4.94 out of 5 stars ( 18 )

Estimated Ship Date: Monday 9/15/2025

RING AND PINION W INSTALL KIT

Part Number: MGR-MGK-223

Not Yet Reviewed

Estimated Ship Date: Oct 6, 2025 if ordered today

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• Special Order

Transmission Bracket, Steel, Natural, Chevy, 4L60E/4L65E/4L80E/4L85E, Each

Part Number: BMM-70499

4.63 out of 5 stars ( 8 )

Estimated Ship Date: Monday 9/15/2025

Transmission Dipstick, Braided Stainless Steel, Natural, Transmission Mount, 4L60E, Each

Part Number: LOK-TD-34L60ETM

4.2 out of 5 stars ( 5 )

Estimated Ship Date: Monday 9/15/2025

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Differential Carrier, Open, Loaded, GM 8.6 in. 30 Spline, Each

Part Number: YGA-20098

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 9/15/2025

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Differential Cover, 10-bolt, Steel, Chrome, GM 8.2 in., GM 8.5 in., GM 8.6 in., Each

Part Number: YGA-32017

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 9/15/2025