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Differential Locker

7 items

To make after-market autoparts an after-thought! Get quality Differential Locker replacement for your vehicle at A-Premium.com. Best Service, Best price!

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Rear Motive Gear Differential Mini Spool for 1980 1982-1995 1997-2006 Mercury Grand MarquisRear Motive Gear Differential Mini Spool for 1980 1982-1995 1997-2006 Mercury Grand Marquis
A-Premium®Part # APDL007
Rear Motive Gear Differential Mini Spool for 1980 1982-1995 1997-2006 Mercury Grand Marquis
51 Reviews
$103.99
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3-year warranty
90 days free return
Fits Mercury Grand Marquis: 1980 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006
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Item LocatedUnited States
Installation PositionRear
ColorBlack
item #1004T20X
Note
【Note-1】 This product is designed to be compatible with Ford 8.8 inches (10 Bolt) models that have 28 splines and a mini spool.
【Note-2】 It is compatible with open carriers.
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Rear Motive Gear Differential Mini Spool for 2004-2012 GMC Canyon
A-Premium®Part # APDL004
Rear Motive Gear Differential Mini Spool for 2004-2012 GMC Canyon
51 Reviews
$73.99
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3-year warranty
90 days free return
Fits GMC Canyon: 2004 2005 2006 2007 2008 2009 2010 2011 2012
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Item LocatedUnited States
Installation PositionRear
ColorBlack
item #1004T0N4
Note
【Note-1】 This product is designed to be compatible with GM 7.5 inches (10 Bolt) models that have 28 splines and a mini spool.
【Note-2】 It is compatible with open carriers that have a large window on one side and a small oval shape on the other.
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Rear Motive Gear Differential Mini Spool for 1978-1980 Pontiac Grand Am
A-Premium®Part # APDL003
Rear Motive Gear Differential Mini Spool for 1978-1980 Pontiac Grand Am
51 Reviews
$86.99
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3-year warranty
90 days free return
Fits Pontiac Grand Am: 1978 1979 1980
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Item LocatedUnited States
Installation PositionRear
ColorBlack
item #1004T08Q
Note
【Note-1】 This product is designed to be compatible with GM 7.5 inches (10 Bolt) models that have 26 splines and a mini spool.
【Note-2】 It can only be installed on vehicles with a stock open-style carrier.
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2 Pcs Rear Motive Gear Differential Mini Spool for 1988-2005 Chevrolet Astro
A-Premium®Part # APDL009
2 Pcs Rear Motive Gear Differential Mini Spool for 1988-2005 Chevrolet Astro
51 Reviews
$143.99
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3-year warranty
90 days free return
Fits Chevrolet Astro: 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005
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Item LocatedUnited States
Installation PositionRear Side
ColorBlack
item #1013C2AH
Note
【Note-1】 Fit the models with GM 7.5" (10 Bolt), 28 Spline, Mini Spool.
【Note-2】 Fit open carriers with a large window on 1 side and a small oval shape on the other.
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2 Pcs Rear Motive Gear Differential Mini Spool for 1976-1979 Buick Skylark
A-Premium®Part # APDL008
2 Pcs Rear Motive Gear Differential Mini Spool for 1976-1979 Buick Skylark
51 Reviews
$167.99
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3-year warranty
90 days free return
Fits Buick Skylark: 1976 1977 1978 1979
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Item LocatedUnited States
Installation PositionRear Side
ColorBlack
item #1013C1Q9
Note
【Note-1】 Fit the models with GM 7.5" (10 Bolt), 26 Spline, Mini Spool, Not fit 30-Spline.
【Note-2】 This item is designed exclusively for use with stock open style carriers and will not fit other carrier types.
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Rear Motive Gear Differential Mini Spool for Chevy GM 8.5 inch 10 Bolts 28-Spline
A-Premium®Part # APDL005
Rear Motive Gear Differential Mini Spool for Chevy GM 8.5 inch 10 Bolts 28-Spline
51 Reviews
$76.99
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3-year warranty
90 days free return
Check if this fits your vehicle
Item LocatedUnited States
Quantity1
Installation PositionRear
ColorBlack
item #1004T41T
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Rear Motive Gear Differential Mini Spool for GM Chevy 8.5 inch 10 Bolts 30-Spline
A-Premium®Part # APDL006
Rear Motive Gear Differential Mini Spool for GM Chevy 8.5 inch 10 Bolts 30-Spline
51 Reviews
$77.99
Edit ZIP code
3-year warranty
90 days free return
Check if this fits your vehicle
Item LocatedUnited States
Quantity1
Installation PositionRear
ColorBlack
item #1004SZC8
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What is a differential locker in a vehicle?

A differential locker, also known as a locking differential and a diff locker, is a specialized differential system used in the central, front, or rear differential of a four-wheel drive vehicle, particularly off-road and high-performance cars. It can temporarily "lock" the differential, forcing the two drive wheels to spin at the same speed, which provides enhanced traction and performance when one wheel is slipping. This enhances off-road capabilities, handling, and acceleration performance. Compared to a standard open differential, a differential locker uses a mechanical locking mechanism to improve the vehicle's driving capabilities on low-friction surfaces, such as mud, snow, and other challenging terrain. This is especially useful for four-wheel-drive vehicles, trucks, and high-performance sports cars that require excellent traction.

How to install a different locker?

When you need to replace the car diff locker, you can refer to the following steps:
1. Prepare the vehicle by jacking it up and securing it on jack stands, then drain the differential fluid.
2. Disassemble the differential and remove the differential cover, disconnect the differential from the driveshaft and axles, and disassemble the differential housing to access the internal components.
3. With the differential disassembled, it's time to install the differential locker mechanism by replacing the standard spider gears with the locker unit.
4. Carefully reassemble the differential housing, ensuring proper gear alignment, then reconnect the differential to the driveshaft and axles.
5. Refill the differential with the recommended fluid type and quantity.
6. Test the operation of the differential locker by engaging and disengaging the locking mechanism, ensuring smooth and proper function.
7. Lower the vehicle and test drive, checking for any issues or abnormal noises to complete the installation.

Conquer any terrain with the unstoppable power of the A-Premium diff locker

When the terrain gets tough, an A-Premium differential locker is your indomitable force. Equipped with exclusive technology, it reliably locks the left and right wheels together, ensuring one wheel's traction can overcome even the most challenging surfaces. The mechanism engages smoothly and silently, without compromising stability. Rigorous engineering guarantees long-term durability, even in rugged off-road conditions. Additionally, our products come with a 3-year warranty, 90-day free returns, and round-the-clock customer service to ensure your complete satisfaction. A-Premium differential locker - your trusty companion, no matter where the journey takes you.