1976 GMC C25 Differential & Rear-End Components

Ring and Pinion Installation Kit, GM 8.875 in., Truck 12-Bolt, 30-Spline Pinion, Kit

Part Number: RMG-8310181

3.64 out of 5 stars ( 14 )

Estimated Ship Date: Today

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Gear, Ring and Pinion, EXCel, 3.08:1 Ratio, GM, 8.875 in., 12-Bolt Truck, Set

Part Number: RMG-12BT308

5.0 out of 5 stars ( 2 )

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Gear, Ring and Pinion, EXCel, 3.73:1 Ratio, GM, 8.875 in., 12-Bolt Truck, Set

Part Number: RMG-12BT373

4.29 out of 5 stars ( 7 )

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Mini Spool, 30-spline, Steel, GM 10.5 in. (14-bolt), Each

Part Number: ALY-GM14MSPL

4.13 out of 5 stars ( 8 )

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Ring and Pinion Installation Kit, Super Kit, GM, 8.875 in., Kit

Part Number: MGR-R12RSKT

4.14 out of 5 stars ( 7 )

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Gear, Ring and Pinion, EXCel, 3.42:1 Ratio, GM, 8.875 in., 12-Bolt Truck, Set

Part Number: RMG-12BT342

4.63 out of 5 stars ( 8 )

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Gear, Ring and Pinion, EXCel, 4.56:1 Ratio, GM, 8.875 in., 12-Bolt Truck, Set

Part Number: RMG-12BT456T

4.75 out of 5 stars ( 4 )

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Gear, Ring and Pinion, EXCel, 4.10:1 Ratio, GM, 8.875 in., 12-Bolt Truck, Set

Part Number: RMG-12BT410

5.0 out of 5 stars ( 1 )

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Gear, Ring and Pinion, 3.42:1 Ratio, GM, 8.875 in. Truck, Set

Part Number: MGR-GM12-342

Not Yet Reviewed

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Ring and Pinion, Master Installation Kit, GM, 10.5 in., 14-Bolt, Kit

Part Number: MGR-R14RMKHT

4.5 out of 5 stars ( 6 )

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Crush Sleeve Eliminator Kit, Steel Spacer, Pinion Shims, GM 10.5 in. (14-bolt), Kit

Part Number: YGA-55067

5.0 out of 5 stars ( 7 )

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Ring and Pinion Installation Kit, Dana 44, 30 Spline Axle, Timken Bearings, Kit

Part Number: RAT-322KT

4.5 out of 5 stars ( 4 )

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Ring and Pinion Installation Kit, Master Kit, GM, 8.875 in., 30-Spline Pinion, Truck, Kit

Part Number: MGR-R12RMK

5.0 out of 5 stars ( 1 )

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Ring and Pinion Installation Kit, Master Kit, GM, 10.5 in., Kit

Part Number: MGR-R14RMKH

5.0 out of 5 stars ( 6 )

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Ring and Pinion Installation Kit, Master Kit, GM, 8.875 in., 30-Spline Pinion, Truck, Kit

Part Number: MGR-R12RMKT

4.5 out of 5 stars ( 10 )

Estimated Ship Date: Today

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Ring and Pinion Installation Kit, Dana 44, 30 Spline Axle, Kit

Part Number: RAT-322K

4.0 out of 5 stars ( 7 )

Estimated Ship Date: Today

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Gear, Ring and Pinion, EXCel, 3.73:1 Ratio, GM, 8.875 in., 12-Bolt Truck, Set

Part Number: RMG-12BT373T

3.88 out of 5 stars ( 8 )

Estimated Ship Date: Today

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Ring and Pinion Installation Kit, GM, 8.875 in., Truck, 12-Bolt, Kit

Part Number: RMG-831018M

4.5 out of 5 stars ( 12 )

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Axle Shaft, Cut-To-Fit, Rear, 30-spline, 38.200 in./42.200 in., GM 10.5 in. (14-bolt), GM 11.5 in.

Part Number: YGA-21641

Not Yet Reviewed

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Spool, Mini, Steel, 30-Spline, 12-Bolt, GM 8.875 in., Each

Part Number: MGR-MS12C

3.38 out of 5 stars ( 8 )

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Differential Parts Kit; Open Differential Internal Kit; Incl. Side And Pinion Gears/Washers/Pinion Shaft And L

Part Number: MGR-GM12BI

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Differential Parts Kit; Open Differential Internal Kit; Incl. Side And Pinion Gears/Washers/Pinion Shaft And L

Part Number: MGR-GM14BI

5.0 out of 5 stars ( 1 )

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Ring and Pinion Gears, 4.56:1 Ratio, 30-spline, Standard Rotation, GM 10.5 in. (14-bolt), Set

Part Number: SVL-2023932

Not Yet Reviewed

Estimated Ship Date: Oct 15, 2025 if ordered today

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Spider Gears, Side Gears, Cross Shaft Pin, Cross Shaft Pin Bolt, 28 Spline, Open, Rear, GM 8.5 in., Kit

Part Number: CWA-26019852

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

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Ring and Pinion Installation Kit, Super Kit, GM, 8.875 in., Kit

Part Number: MGR-R12RSK

Not Yet Reviewed

Estimated Ship Date: Oct 24, 2025 if ordered today

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