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Hummer Differential Locker

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Rear Motive Gear Differential Mini Spool for 2009-2010 Hummer H3TRear Motive Gear Differential Mini Spool for 2009-2010 Hummer H3T
A-Premium®Part # APDL004
Rear Motive Gear Differential Mini Spool for 2009-2010 Hummer H3T
51 Reviews
$73.99
Edit ZIP code
3-year warranty
90 days free return
Fits Hummer H3T: 2009 2010
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Hummer
Item LocatedUnited States
Quantity1
Installation PositionRear
ColorBlack
Part interchange
MS7528, MS75-28
item #1004T2WD
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 2006-2010 Hummer H3
A-Premium®Part # APDL004
Rear Motive Gear Differential Mini Spool for 2006-2010 Hummer H3
51 Reviews
$73.99
Edit ZIP code
3-year warranty
90 days free return
Fits Hummer H3: 2006 2007 2008 2009 2010
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Hummer
Item LocatedUnited States
Quantity1
Installation PositionRear
ColorBlack
Part interchange
MS7528, MS75-28
item #1004T2PG
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.
Show less
2 Pcs Rear Motive Gear Differential Mini Spool for 2006-2010 Hummer H3
A-Premium®Part # APDL009
2 Pcs Rear Motive Gear Differential Mini Spool for 2006-2010 Hummer H3
51 Reviews
$143.99
Edit ZIP code
3-year warranty
90 days free return
Fits Hummer H3: 2006 2007 2008 2009 2010
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Hummer
Item LocatedUnited States
Quantity2
Installation PositionRear Side
ColorBlack
Part interchange
MS7528, MS75-28
item #1013C0Q4
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.
Show less
2 Pcs Rear Motive Gear Differential Mini Spool for 2009-2010 Hummer H3T
A-Premium®Part # APDL009
2 Pcs Rear Motive Gear Differential Mini Spool for 2009-2010 Hummer H3T
51 Reviews
$143.99
Edit ZIP code
3-year warranty
90 days free return
Fits Hummer H3T: 2009 2010
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Hummer
Item LocatedUnited States
Quantity2
Installation PositionRear Side
ColorBlack
Part interchange
MS7528, MS75-28
item #1013C28Z
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.
Show less

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.