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

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: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

Summit Racing™ Positraction 28 Spline Differential Carriers GM 8.2 Inch, BOP axle SUM-730964

Differential Carrier, Positraction, Nodular Iron, GM 8.2 in. BOP, 28 spline, 3.31 Up Ratio, Each

Part Number: SUM-730964

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

Summit Racing™ Positraction 31 Spline Differential Carriers Ford 8.8 Inch SUM-730944

Differential Carrier, Positraction, Nodular Iron, Ford 8.8 in., 31 Spline, Each

Part Number: SUM-730944

3.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

Summit Racing™ Positraction 30 Spline Differential Carriers GM 8.875 Inch (12-bolt) SUM-730946

Differential Carrier, Positraction, Nodular Iron, GM 8.875 in., 30 Spline, 3.08 to 3.90 Ratio, Each

Part Number: SUM-730946

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

Summit Racing™ Positraction 28 Spline Differential Carriers GM 8.2 Inch SUM-730962

Differential Carrier, Positraction, Nodular Iron, GM 8.2 in., 28 Spline, 3.08 Up Ratio, Each

Part Number: SUM-730962

4.57 out of 5 stars ( 7 )

Estimated Ship Date: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

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: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

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: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

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: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

Summit Racing™ Positraction 17 Spline Differential Carriers GM 8.5 Inch, Corvette SUM-730989

Differential Carrier, Positraction, 17-spline, Rear, GM 8.5 in. Corvette, Chevy, Each

Part Number: SUM-730989

Not Yet Reviewed

Estimated Ship Date: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

Summit Racing™ Positraction 28 Spline Differential Carriers Ford 8.8 Inch SUM-730942

Differential Carrier, Positraction, Nodular Iron, Ford 8.8 in., 28 Spline, Each

Part Number: SUM-730942

Not Yet Reviewed

Estimated Ship Date: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

Summit Racing™ Ring and Pinion Gear and Installation Kit Pro Packs 14-0057 GM 8.875 in. (12-bolt) passenger car 3.73 Gears

Combo, Richmond Gear, Ring and Pinion, 3.73:1 Ratio, GM 8.875 in. "C", 3 Series, Install Kit, Lube, DVD, Kit

Part Number: CMB-14-0057

5.0 out of 5 stars ( 1 )

Cannot be shipped Internationally

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Cannot be shipped Internationally

Summit Racing™ Positraction 30 Spline Differential Carriers GM 8.875 Inch (12-bolt), truck SUM-730956

Differential Carrier, Positraction, Nodular Iron, GM 8.875 in. Truck, 3.73 Up 4 series, 30-spline, Rear, Each

Part Number: SUM-730956

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

Summit Racing™ Ring and Pinion Gear and Installation Kit Pro Packs 14-0058 GM 8.875 in. (12-bolt) passenger car 3.73 Gears

Combo, Richmond Gear, Ring and Pinion, 3.73:1 Ratio, GM 8.875 in. "C", 4 Series, Install Kit, Lube, DVD, Kit

Part Number: CMB-14-0058

5.0 out of 5 stars ( 1 )

Cannot be shipped Internationally

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Cannot be shipped Internationally

Summit Racing™ Ring and Pinion Gear and Installation Kit Pro Packs 14-0039 GM 8.2 in. 3.55 Gears

Combo, Richmond Gear, Ring and Pinion, 3.55:1 Ratio, GM 8.2 in., 3 Series, Install Kit, Lube, DVD, Kit

Part Number: CMB-14-0039

4.75 out of 5 stars ( 4 )

Cannot be shipped Internationally

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Cannot be shipped Internationally

Summit Racing™ Positraction 30 Spline Differential Carriers GM 8.875 Inch (12-bolt), truck SUM-730954

Differential Carrier, Positraction, Nodular Iron, GM 8.875 in. Truck, 2.76 to 3.42 3 Series, 30-spline, Rear, Each

Part Number: SUM-730954

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

Summit Racing™ Ring and Pinion Gear and Installation Kit Pro Packs 14-0020 Chrysler 8.75 in. 742 case 4.10 Gears

Combo, Richmond Gear, Ring and Pinion, 4.10:1 Ratio, Mopar, 8.75 in., 742 Case, Install Kit, Lube, DVD, Kit

Part Number: CMB-14-0020

Not Yet Reviewed

Estimated Ship Date: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

Summit Racing™ Ring and Pinion Gear and Installation Kit Pro Packs 14-0032 Ford 9 in. 3.89 Gears

Combo, Richmond Gear, Ring and Pinion, 3.89:1 Ratio, Ford 9 in., 3.250 in. Case, Install Kit, Lube, DVD, Kit

Part Number: CMB-14-0032

Not Yet Reviewed

Cannot be shipped Internationally

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Cannot be shipped Internationally

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: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

Summit Racing™ Ring and Pinion Gear and Installation Kit Pro Packs 14-0042 GM 7.5/7.625 in. 3.73 Gears

Combo, Richmond Gear, Ring and Pinion, 3.73:1 Ratio, GM 7.5/7.625 in., 3 Series, Install Kit, Kit

Part Number: CMB-14-0042

Not Yet Reviewed

Cannot be shipped Internationally if ordered today

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Cannot be shipped Internationally if ordered today

Summit Racing™ Ring and Pinion Gear and Installation Kit Pro Packs 14-0043 GM 7.5/7.625 in. 3.73 Gears

Combo, Richmond Gear, Ring and Pinion, 3.73:1 Ratio, GM 7.5/7.625 in., 3 Series, Install Kit, 1982-98, Kit

Part Number: CMB-14-0043

5.0 out of 5 stars ( 2 )

Cannot be shipped Internationally if ordered today

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Cannot be shipped Internationally if ordered today

Summit Racing™ Positraction 31 Spline Differential Carriers Chrysler 9.25 Inch ZF SUM-730971

Differential Carrier, Positraction, Nodular Iron, Chrysler 9.25 in. ZF, 31 Spline, Rear, Each

Part Number: SUM-730971

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

Summit Racing™ Positraction 33 Spline Differential Carriers GM 8.875 Inch (12-bolt) SUM-730948

Differential Carrier, Positraction, Nodular Iron, GM 8.75 in., 33 Spline, 3.08 to 3.90 Ratio, Each

Part Number: SUM-730948

Not Yet Reviewed

Estimated Ship Date: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

Summit Racing™ Ring and Pinion Gear and Installation Kit Pro Packs 14-0053 GM 8.5 in. 4.10 Gears

Combo, Richmond Gear, Ring and Pinion, 4.10:1 Ratio, GM 8.5 in., 3 Series, Install Kit, Lube, DVD, Kit

Part Number: CMB-14-0053

5.0 out of 5 stars ( 2 )

Cannot be shipped Internationally

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Cannot be shipped Internationally

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

Estimated Ship Date: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

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: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025