1978 Differential & Rear-End Components Transmission & Drivetrain - On Sale Savings Central - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Powertrax Lock-Right Lockers GM 8.875 Inch (12-bolt), Car/Truck 1910-LR

Differential, Lock-Right, Locker, 30-Spline, GM, 12-Bolt, Car/Truck, Each

Part Number: PWT-1910-LR

4.13 out of 5 stars ( 16 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Powertrax Lock-Right Lockers Dana 44 2410-LR

Differential, Lock-Right, Locker, 30-Spline, Dana 44, Open, Each

Part Number: PWT-2410-LR

4.6 out of 5 stars ( 5 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Powertrax Lock-Right Lockers GM 8.5 Inch 1920-LR

Differential, Lock-Right, Locker, 28-Spline, GM, 8.5 in., Each

Part Number: PWT-1920-LR

4.71 out of 5 stars ( 14 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

B&M 12 Bolt GM 8.875 Inch Differential Cover 70504

Differential Cover, Rear, 12-bolt, Aluminum, Natural, GM 8.875 in. Truck, Each

Part Number: BMM-70504

4.9 out of 5 stars ( 10 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

B&M 10 Bolt GM 8.2/8.5/8.6 Inch Differential Cover 70502

Differential Cover, 10-bolt, Aluminum, Natural, GM 8.2 in., GM 8.5 in., GM 8.6 in., Each

Part Number: BMM-70502

4.76 out of 5 stars ( 33 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Powertrax Lock-Right Lockers Ford 8/9 Inch 1810-LR

Differential, Lock-Right, Locker, 28/31-Spline, Ford, 9 in., Each

Part Number: PWT-1810-LR

3.5 out of 5 stars ( 8 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Powertrax Lock-Right Lockers Chrysler 9.25 Inch 1220-LR

Differential, Lock-Right, Locker, 31-Spline, Mopar, 9.25 in., Each

Part Number: PWT-1220-LR

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Powertrax Lock-Right Lockers GM 10.5 Inch (14-bolt) 1955-LR

Differential, Lock-Right, Locker, 30-Spline, GM, 10.5 in., Each

Part Number: PWT-1955-LR

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

B&M 12 Bolt GM 8.875 Inch Differential Cover 71504

Differential Cover, Rear, 12-bolt, Aluminum, Black Anodized, GM 8.875 in. Truck, Each

Part Number: BMM-71504

2.33 out of 5 stars ( 3 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Powertrax Lock-Right Lockers Dana 60 2610-LR

Differential, Lock-Right, Locker, 30-Spline, Dana 60, Each

Part Number: PWT-2610-LR

3.5 out of 5 stars ( 2 )

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

Mr. Gasket Chrome 12 Bolt GM 8.875 Inch Differential Cover 9895

Differential Cover, Steel, Chrome, GM, 12-Bolt, Truck, Kit

Part Number: MRG-9895

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Powertrax Lock-Right Lockers Chrysler 8.25 Inch 1230-LR

Differential, Lock-Right, Locker, 27-Spline, Mopar, 8.25 in., Each

Part Number: PWT-1230-LR

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

Powertrax Lock-Right Lockers Toyota 8.0 (7.8) Inch 1610-LR

Differential, Lock-Right, Locker, 30-Spline, Toyota, 8 in., Each

Part Number: PWT-1610-LR

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

Powertrax Lock-Right Lockers Toyota 8.875 Inch 1630-LR

Differential, Lock-Right, Locker, 30-Spline, Toyota, 8.875 in., Each

Part Number: PWT-1630-LR

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

Powertrax Lock-Right Lockers Dana 30 2210-LR

Differential, Lock-Right, Locker, 27-Spline, Dana 30, Each

Part Number: PWT-2210-LR

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Powertrax Lock-Right Lockers Dana 60 2620-LR

Differential, Lock-Right, Locker, 35-Spline, Dana 60, Each

Part Number: PWT-2620-LR

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

Powertrax Lock-Right Lockers AMC Model 20 1710-LR

Differential, Lock-Right, Locker, 29-Spline, AMC, Model 20, Each

Part Number: PWT-1710-LR

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Powertrax No-Slip Traction Systems AMC Model 20 9201202900

5 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/2/2026

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Powertrax Lock-Right Lockers GM 7.5 Inch 1930-LR

Differential, Lock-Right, Locker, 26-Spline, GM, 7.5 in., Each

Part Number: PWT-1930-LR

4.75 out of 5 stars ( 8 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Powertrax Grip Pro Traction Systems Ford 9 Inch GT109028

Differential, Grip Pro Traction System, 28-Spline, Ford, 9 in., Each

Part Number: PWT-GT109028

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Summit Racing™ Ford 9 in. Trac-Loc 28 Spline Differential Ford 9 Inch SUM-CTF9TRACL28

4.5 out of 5 stars ( 16 )

Estimated Ship Date: Monday 3/2/2026

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Powertrax Grip Pro Traction Systems GM 8.875 Inch (12-bolt), truck GT248730

Differential, Grip Pro Traction System, 30-Spline, GM 8.875 in. 12-Bolt Truck, Each

Part Number: PWT-GT248730

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Yukon Gear & Axle Dura Grip Positraction Carriers GM 8.875 Inch (12-bolt), truck YDGGM12T-3-30-1

4 out of 5 stars ( 5 )

Estimated Ship Date: Monday 3/2/2026

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Powertrax Grip Pro Traction Systems Dana 35 GT443527

Differential, Grip Pro Traction System, 27-Spline, Dana 35, Each

Part Number: PWT-GT443527

Not Yet Reviewed

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Powertrax Lock-Right Lockers Ford 7.5 Inch 1830-LR

Differential, Lock-Right, Locker, 28-Spline, Ford, 7.5 in., Each

Part Number: PWT-1830-LR

3.5 out of 5 stars ( 8 )

Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

Powertrax Lock-Right Lockers Dana 44 2413-LR

Differential, Lock-Right, Locker, 19-Spline, Dana, 44, Rear, Each

Part Number: PWT-2413-LR

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

Powertrax Grip Pro Traction Systems Dana 60 GT436035

Differential, Grip Pro Traction System, 35-Spline, Dana 60, Each

Part Number: PWT-GT436035

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

Powertrax Grip Pro Traction Systems GM 10.5 Inch GT231430

Differential Carriers, Grip Pro Traction System, 30 Spline, 10.5 in. GM, Each

Part Number: PWT-GT231430

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today