Summit Racing SpeedCard - learn how to get 10% back up to $100

Summit Racing SpeedCard - learn how to get 10% back up to $100

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Summit Racing

Summit Racing™ Positraction Differential Carriers

4.47 out of 5 stars 49 Customer Reviews

Summit Racing™ Positraction differential carriers deliver aggressive, yet smooth, controllable traction. Our carriers feature nodular iron cases, forged steel internals, strong teeth—and they're fully rebuildable. We offer fitments for dozens of axle models. Whether replacing or upgrading, Summit Racing™ Positraction differential carriers will put power to the pavement, providing the confidence and performance you need.

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

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

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: Today

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

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

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 )

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Summit Racing™ Positraction 35 Spline Differential Carriers Dana 80 SUM-730981

Summit Racing™ Positraction 35 Spline Differential Carriers Dana 80 SUM-730981

Summit Racing™ Positraction 35 Spline Differential Carriers Dana 80 SUM-730981

Differential Carrier, Positraction, Nodular Iron, Dana 80, 35 Spline, 3 Series, Each

Part Number: SUM-730981

Not Yet Reviewed

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

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

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: Today

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

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

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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