1979 CHEVROLET K20 Excel Ring Pinion and Axle Transmission & Drivetrain

Ring and Pinion Gears, EXCel, 4.10:1 Ratio, 30-spline, Standard Rotation, GM 8.5 in., GM 8.6 in., Set

Part Number: RMG-GM85410

4.0 out of 5 stars ( 8 )

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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 )

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

Part Number: RMG-GM85342

4.4 out of 5 stars ( 5 )

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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, 3.42:1 Ratio, GM, 8.875 in., 12-Bolt Truck, Set

Part Number: RMG-12BT342

4.63 out of 5 stars ( 8 )

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Ring and Pinion Installation Kit, EXCel, GM, 8.5 in., 10-Bolt, 30 Spline Pinion, Koyo Bearings, Kit

Part Number: RMG-XL-1021-1

4.5 out of 5 stars ( 2 )

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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, 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, 3.73:1 Ratio, GM, 8.875 in., 12-Bolt Truck, Set

Part Number: RMG-12BT373T

3.88 out of 5 stars ( 8 )

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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 )

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Differential Carrier

Part Number: RMG-XL-5030

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Estimated Ship Date: Nov 12, 2025 if ordered today

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

Part Number: RMG-12BT410T

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Ring and Pinion Gears, EXCel, Dana 44, 4.09:1 Ratio, 26-spline, Standard, for 3.92 or Numerically Higher Ratio Carrier, Front, Dana 44, Ford, Set

Part Number: RMG-D44409

1.0 out of 5 stars ( 1 )

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Pinion Yoke, Bolt-On, Steel, 3RS44 Series, 30-Spline, GM 8.5, Each

Part Number: RMG-96-2520

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Estimated Ship Date: Nov 12, 2025 if ordered today

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Pinion Yoke, Bolt-On, Steel, 1350, 30-Spline, GM 8.875, Each

Part Number: RMG-96-2511

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Ring and Pinion Gears, EXCel, 3.73:1 Ratio, 30-spline, Standard Rotation, GM 10.5 in., Chevy, GMC, Rear, Set

Part Number: RMG-GM105373

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Estimated Ship Date: Nov 12, 2025 if ordered today

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Ring and Pinion Installation Kit, Complete, GM 10.5 in. (14-bolt), Rear, Kit

Part Number: RMG-XL-1063-1

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Estimated Ship Date: Nov 12, 2025 if ordered today

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Ring and Pinion Kit

Part Number: RMG-GM105456TK

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Ring and Pinion Kit

Part Number: RMG-GM105410

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Estimated Ship Date: Nov 11, 2025 if ordered today

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Ring and Pinion Kit

Part Number: RMG-D44373

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Estimated Ship Date: Nov 11, 2025 if ordered today

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Ring and Pinion Kit

Part Number: RMG-D44538

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Estimated Ship Date: Nov 11, 2025 if ordered today

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Differential Yoke, Steel, 1350, 30 Spline, GM 8.5 in. Each

Part Number: RMG-96-2521

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Estimated Ship Date: Nov 12, 2025 if ordered today

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Ring and Pinion Kit

Part Number: RMG-XL-1033-1

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Pinion Shaft, CROSS PIN-GM 10 BOLT 8.5" - 93

Part Number: RMG-XL-5640

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