GMC Summit Racing Differential & Rear-End Components Transmission & Drivetrain - Free Shipping on Orders Over $109 at Summit Racing

Summit Racing™ Aluminum 12 Bolt GM 8.875 Inch Differential Cover SUM-730503N

Differential Cover, Aluminum, Natural, GM, 12-Bolt 8.875 in., Truck, Kit

Part Number: SUM-730503N

5.0 out of 5 stars ( 1 )

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Summit Racing™ Positraction 28 Spline Differential Carriers GM 8.5 Inch SUM-730966

Differential Carrier, Positraction, Nodular Iron, GM 8.5 in., 28 Spline, 2.73 Up Ratio, Each

Part Number: SUM-730966

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Summit Racing™ Positraction 26 Spline Differential Carriers GM 7.5/7.6 Inch SUM-730958

Differential Carrier, Positraction, Nodular Iron, GM 7.5/7.6 in., 26 Spline, 3.23 Up Ratio, Each

Part Number: SUM-730958

4.33 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Summit Racing™ Positraction 28 Spline Differential Carriers GM 7.5/7.6 Inch SUM-730960

Differential Carrier, Positraction, Nodular Iron, GM 7.5/7.6 in., 28 Spline, 3.23 Up Ratio, Each

Part Number: SUM-730960

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Summit Racing™ Aluminum 12 Bolt GM 8.875 Inch Differential Cover SUM-730503B

Differential Cover, Aluminum, Black Powdercoated, GM, 12-Bolt 8.875 in., Truck, Kit

Part Number: SUM-730503B

4.0 out of 5 stars ( 12 )

Estimated Ship Date: Nov 10, 2025 if ordered today

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Estimated Ship Date: Nov 10, 2025 if ordered today

Summit Racing™ Positraction 30 Spline Differential Carriers GM 10.5 Inch (14-bolt) SUM-730987

Differential Carrier, Positraction, 30-spline, Steel, Rear, Chevy, GMC, GM 10.5 in. 14-bolt, Each

Part Number: SUM-730987

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Summit Racing™ Positraction 30 Spline Differential Carriers Dana 60/61 SUM-730975

Differential Carrier, Positraction, Nodular Iron, Dana 60, Dana 61, 30 Spline, 3 Series, Each

Part Number: SUM-730975

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Summit Racing™ Positraction 30 Spline Differential Carriers Dana 44 SUM-730972

Differential Carrier, Positraction, Nodular Iron, Dana 44, 3 Series, 30 Spline, Each

Part Number: SUM-730972

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Summit Racing™ Axle Upgrade Combos 35-0001

Axle Upgrade Combo, Dana 60, 35 Spline, Spicer U-Joints, Spicer Front Outter Axle Shafts, Manual Hubs, Kit

Part Number: CMB-35-0001

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Summit Racing™ Axle Upgrade Combos 35-0002

Axle Upgrade Combo, Dana 60, 35 Spline, Spicer Greasable U-Joints, Spicer Axle Shafts, Manual Hubs, Kit

Part Number: CMB-35-0002

Not Yet Reviewed

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Summit Racing™ Positraction 30 Spline Differential Carriers GM 8.6 Inch SUM-730968

Differential Carrier, Positraction, Nodular Iron, GM 8.5/8.6 in., 30 Spline, 2.73 Up Ratio, Each

Part Number: SUM-730968

5.0 out of 5 stars ( 10 )

Estimated Ship Date: Today

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Summit Racing™ Aluminum 12 Bolt GM 8.875 Inch Differential Cover SUM-730503

Differential Cover, Aluminum, Polished, GM, 12-Bolt 8.875 in., Truck, Kit

Part Number: SUM-730503

4.53 out of 5 stars ( 15 )

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Summit Racing™ Aluminum 12 Bolt GM 8.875 Inch Differential Cover SUM-730503B

4 out of 5 stars ( 12 )

Estimated Ship Date: Nov 10, 2025

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Summit Racing™ Positraction 33 Spline Differential Carriers GM 9.5 Inch SUM-730988

Differential Carrier, Positraction, Clutch-type, 33-spline, Chevy, GMC, Hummer, Each

Part Number: SUM-730988

Not Yet Reviewed

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Summit Racing™ Positraction 32 Spline Differential Carriers Dana 60/61 SUM-730979

Differential Carrier, Positraction, Nodular Iron, Dana 60, Dana 61, 32 Spline, 4 Series, Each

Part Number: SUM-730979

Not Yet Reviewed

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Summit Racing™ Positraction 35 Spline Differential Carriers Dana 60/Super 60 SUM-730980

Differential Carrier, Positraction, Nodular Iron, Dana 60, 35 Spline, 4 Series, Each

Part Number: SUM-730980

Not Yet Reviewed

Estimated Ship Date: Nov 5, 2025 if ordered today

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Estimated Ship Date: Nov 5, 2025 if ordered today

Yukon Gear & Axle Dura Grip Positraction Carriers Dana 60/Super 60 YDGD60-4-35

Not Yet Reviewed

Estimated Ship Date: Nov 18, 2025

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Summit Racing™ Positraction 37 Spline Differential Carriers Dana 80 SUM-730982

Differential Carrier, Positraction, Nodular Iron, Dana 80, 37 Spline, 3 Series, Each

Part Number: SUM-730982

Not Yet Reviewed

Estimated Ship Date: Nov 5, 2025 if ordered today

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Estimated Ship Date: Nov 5, 2025 if ordered today

Yukon Gear & Axle Dura Grip Positraction Carriers Dana 80 YDGD80-3-37

Not Yet Reviewed

Estimated Ship Date: Nov 18, 2025

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Summit Racing™ Positraction 37 Spline Differential Carriers Dana 80 SUM-730984

Differential Carrier, Positraction, Nodular Iron, Dana 80, 37 Spline, 4 Series, Each

Part Number: SUM-730984

Not Yet Reviewed

Estimated Ship Date: Nov 3, 2025 if ordered today

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Estimated Ship Date: Nov 3, 2025 if ordered today

Yukon Gear & Axle Dura Grip Positraction Carriers Dana 80 YDGD80-4-37

Not Yet Reviewed

Estimated Ship Date: Nov 18, 2025

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Summit Racing™ Positraction 32 Spline Differential Carriers Dana 60/61 SUM-730976

Differential Carrier, Positraction, Nodular Iron, Dana 60, Dana 61, 32 Spline, 3 Series, Each

Part Number: SUM-730976

Not Yet Reviewed

Estimated Ship Date: Oct 27, 2025 if ordered today

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Estimated Ship Date: Oct 27, 2025 if ordered today

Summit Racing™ Positraction 30 Spline Differential Carriers Dana 60/61 SUM-730978

Differential Carrier, Positraction, Nodular Iron, Dana 60, Dana 61, 30 Spline, 4 Series, Each

Part Number: SUM-730978

Not Yet Reviewed

Estimated Ship Date: Nov 18, 2025 if ordered today

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Estimated Ship Date: Nov 18, 2025 if ordered today

Yukon Gear & Axle Dura Grip Positraction Carriers Dana 60/61 YDGD60-4-30

Not Yet Reviewed

Estimated Ship Date: Nov 18, 2025

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Summit Racing™ Positraction 30 Spline Differential Carriers Dana 44 SUM-730973

Differential Carrier, Positraction, Nodular Iron, Dana 44, Dana 44 IFS, 4 Series, 30 Spline, Each

Part Number: SUM-730973

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 8, 2025 if ordered today

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Estimated Ship Date: Dec 8, 2025 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Yukon Gear & Axle Dura Grip Positraction Carriers Dana 44 YDGD44-4-30-1

5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Summit Racing™ Axle Upgrade Combos 35-0003

Axle Upgrade Combo, Dana 60, 35 Spline, Spicer Non-Greasable U-Joints, Spicer Axle Shafts, Manual Hubs, Kit

Part Number: CMB-35-0003

Not Yet Reviewed

Estimated Ship Date: Oct 20, 2025 if ordered today

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Estimated Ship Date: Oct 20, 2025 if ordered today

Summit Racing™ Axle Upgrade Combos 35-0004

Axle Upgrade Combo, Dana 60, 35 Spline, Spicer Greasable U-Joints, Spicer Axle Shafts, Manual Hubs, Kit

Part Number: CMB-35-0004

Not Yet Reviewed

Estimated Ship Date: Oct 20, 2025 if ordered today

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Estimated Ship Date: Oct 20, 2025 if ordered today

Summit Racing™ Axle Upgrade Combos 35-0005

Axle Upgrade Combo, Dana 60, 35 Spline, Spicer Non-Greasable U-Joints, Spicer Axle Shafts, Drive Hubs, Kit

Part Number: CMB-35-0005

Not Yet Reviewed

Estimated Ship Date: Oct 20, 2025 if ordered today

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Estimated Ship Date: Oct 20, 2025 if ordered today

Summit Racing™ Axle Upgrade Combos 35-0006

Axle Upgrade Combo, Dana 60, 35 Spline, Spicer Greasable U-Joints, Spicer Axle Shafts, Drive Hubs, Kit

Part Number: CMB-35-0006

Not Yet Reviewed

Estimated Ship Date: Oct 20, 2025 if ordered today

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Estimated Ship Date: Oct 20, 2025 if ordered today

Summit Racing™ Axle Upgrade Combos 35-0007

Axle Upgrade Combo, Dana 60, 35 Spline, Spicer Non-Greasable U-Joints, Yukon Axle Shafts, Manual Hubs, Kit

Part Number: CMB-35-0007

Not Yet Reviewed

Estimated Ship Date: Oct 20, 2025 if ordered today

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Estimated Ship Date: Oct 20, 2025 if ordered today