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Home
On Sale
Drivetrain & Differential

Automatic Locker 30 Splines Rear Drivetrain & Differential

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Your Selection

Axle Spline
30 Splines
Differential Type
Automatic Locker
Axle Location
Rear

Brand

Eaton (5)
Power Trax (8)

Fitment

Universal Fit (13)

Axle Location

Front (2)
Front|Rear (9)
Rear|Front (9)

Axle Spline

Any (1)
16 Splines (1)
22 Splines (1)
23 Splines (1)
26 Splines (7)
27 Splines (6)
28 Splines (7)
29 Splines (4)
31 Splines (14)
32 Splines (4)
View More
33 Splines (3)
34 Splines (1)
35 Splines (10)
37 Splines (1)

Axle Type

Chrysler 8.75in Drop Out (1)
Dana 35 (1)
GM 10 Bolt 8.6 Inches (1)
GM 12 Bolt 8.875 Inches (1)
GM 14 Bolt 10.5 Inches (3)
GM 14 Bolt 11.5 Inches(AAM)|Chrysler 11.5 Inches AAM (1)
Toyota 8.875 Inches 12 Bolt (2)
Toyota Tacoma (3)

Popular Axle Manufacture

American Axle Manufacturing (1)
Chrysler (1)
Dana (1)
GM (5)
Toyota (5)

Part Type

Differential (7)
Differential Lock Assembly (6)

Price Range

$300 to $399 (1)
$400 to $499 (4)
$500 to $749 (4)
$750 to $999 (2)
Over $1000 (2)

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Automatic Locker 30 Splines Rear On Sale

3 Product Groups

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Power Trax Lock-Right Lockers

Power Trax Lock Right Locker

From $436.99

The original locking differential
Outstanding value
Completely replaces stock differential
Reuses your vehicle's existing carrier
Includes Zytanium cross shaft
Fully automatic operation for ease-of-use
Case not required
Does not alter ring and pinion
Works for both front or rear or in tandem
Thorougly tested to provide solid, reliable performance
Bolt-in installation
No gear resetting or shimming required
Available in 22, 26, 30 and 31 spline configurations
California Residents: WARNING

From $436.99

4.4 4.4 (185)

Power Trax No-Slip Traction Systems

From $398.99

The Powertrax No-Slip Traction Systems are the latest design in traction-adding differential technology. They combine the smooth operation of a limited-slip differential with the traction performance of a locking differential. A precise synchronization mechanism eliminates the ratcheting sounds typical of other locking differentials. Installation is simple because no ring and pinion setup is required. In addition, no special tools or oils are needed.
California Residents: WARNING

From $398.99

4.2 4.2 (66)

Eaton Detroit Locker Differentials

Eaton Detroit Locker Differential

From $1,069.99

4.7 4.7 (1131)

13 Products

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Eaton Detroit Locker GM 10.5 Inch 14 Bolt Automatic Locker - 225S10

Part Number: EAT225S10

Eaton Detroit Locker GM 10.5 Inch 14 Bolt Automatic Locker - 225S10

4.0 4.0 (4)

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

In-Stock Ships next business day ?

Fitment: Universal Fit
Automatic Locking
Unmatched Durability
Legendary Traction
For Use With 30 Spline Axles
Must Be Used With Factory 4 Spider Open Differential Case
California Residents: WARNING

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$699.99

$721.64

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Eaton Detroit Locker GM 10.5 Inch 14 Bolt Automatic Locker - 225S10

Part #: EAT225S10

4.0 4.0 (4)

$699.99

$721.64

In-Stock Ships next business day ?

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How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

In-Stock Ships next business day ?

Fitment: Universal Fit
Automatic Locking
Unmatched Durability
Legendary Traction
For Use With 30 Spline Axles
Must Be Used With Factory 4 Spider Open Differential Case
California Residents: WARNING

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Power Trax Toyota Tacoma 8 Inch Rear 30 Spline Lock Right Locker - 1615-LR

Part Number: PTX1615-LR

Power Trax Toyota Tacoma 8 Inch Rear 30 Spline Lock Right Locker - 1615-LR

4.0 4.0 (2)

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

Only 2 left in Stock ?

Fitment: Universal Fit
For Use With 30 Spline Axles
For Open Differential Only
No Need To Set Up Gears Reuses Existing Carrier
Arrgesive Traction
California Residents: WARNING

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$436.99

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Power Trax Toyota Tacoma 8 Inch Rear 30 Spline Lock Right Locker - 1615-LR

Part #: PTX1615-LR

4.0 4.0 (2)

$436.99

Only 2 left in Stock ?

+ Add to Wishlist

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How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

Only 2 left in Stock ?

Fitment: Universal Fit
For Use With 30 Spline Axles
For Open Differential Only
No Need To Set Up Gears Reuses Existing Carrier
Arrgesive Traction
California Residents: WARNING

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- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

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Eaton Detroit Locker Toyota 8.4 Inch Automatic Locker - 187SL199A

Part Number: EAT187SL199A

Eaton Detroit Locker Toyota 8.4 Inch Automatic Locker - 187SL199A

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How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

Only 1 left in Stock ?

Fitment: Universal Fit
For Use With 30 Spline Axles
For Use With 3.54 - 5.29 Gears
Automatic Locking
Legendary Traction
Unmatched Durability
California Residents: WARNING

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$899.99

$978.25

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Eaton Detroit Locker Toyota 8.4 Inch Automatic Locker - 187SL199A

Part #: EAT187SL199A

$899.99

$978.25

Only 1 left in Stock ?

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How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

Only 1 left in Stock ?

Fitment: Universal Fit
For Use With 30 Spline Axles
For Use With 3.54 - 5.29 Gears
Automatic Locking
Legendary Traction
Unmatched Durability
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

Lowest Price! Guaranteed! Request A Price Match

Qualifies for Free Shipping

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Eaton Detroit Locker GM 8.875 Inch12Bolt Truck 3.73 Up Automatic Locker - 187C150A

Part Number: EAT187C150A

Eaton Detroit Locker GM 8.875 Inch12Bolt Truck 3.73 Up Automatic Locker - 187C150A

4.7 4.7 (81)

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

Only 1 left in Stock ?

Fitment: Universal Fit
For Use With 30 Spline Axles
For Use With 3.73 And Up Gears
Automatic Locking
Legendary Traction
Unmatched Durability
California Residents: WARNING

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- View Less Specs

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Qualifies for Free Shipping

$1,069.99

$1,163.03

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Eaton Detroit Locker GM 8.875 Inch12Bolt Truck 3.73 Up Automatic Locker - 187C150A

Part #: EAT187C150A

4.7 4.7 (81)

$1,069.99

$1,163.03

Only 1 left in Stock ?

+ Add to Wishlist

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EASY RETURNS

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

Only 1 left in Stock ?

Fitment: Universal Fit
For Use With 30 Spline Axles
For Use With 3.73 And Up Gears
Automatic Locking
Legendary Traction
Unmatched Durability
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

Lowest Price! Guaranteed! Request A Price Match

Qualifies for Free Shipping

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Eaton Detroit Locker AAM 11.5 Automatic Locker - 250SL195A

Part Number: EAT250SL195A

Eaton Detroit Locker AAM 11.5 Automatic Locker - 250SL195A

Be the first to review

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

Only 3 left in Stock ?

Fitment: Universal Fit
For Use With 30 Spline Axles
For Use With All Gears
Automatic Locking
Legendary Traction
Unmatched Durability
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

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Qualifies for Free Shipping

$1,499.99

$1,630.42

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Eaton Detroit Locker AAM 11.5 Automatic Locker - 250SL195A

Part #: EAT250SL195A

$1,499.99

$1,630.42

Only 3 left in Stock ?

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

Only 3 left in Stock ?

Fitment: Universal Fit
For Use With 30 Spline Axles
For Use With All Gears
Automatic Locking
Legendary Traction
Unmatched Durability
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

Lowest Price! Guaranteed! Request A Price Match

Qualifies for Free Shipping

4WP PROTECTION PLAN

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Power Trax Toyota 8.875 Inch 30 Spline Lock Right Locker - 1630-LR

Part Number: PTX1630-LR

Power Trax Toyota 8.875 Inch 30 Spline Lock Right Locker - 1630-LR

Be the first to review

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Universal Fit
For Use With 30 Spline Axles
For Open Differential Only
For Use In 69-97 Toyota Land Cruiser
No Need To Set Up Gears Reuses Existing Carrier
Arrgesive Traction
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

Lowest Price! Guaranteed! Request A Price Match

Qualifies for Free Shipping

$438.99

On Backorder

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Power Trax Toyota 8.875 Inch 30 Spline Lock Right Locker - 1630-LR

Part #: PTX1630-LR

$438.99

On Backorder

Email me when this product comes in stock

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Universal Fit
For Use With 30 Spline Axles
For Open Differential Only
For Use In 69-97 Toyota Land Cruiser
No Need To Set Up Gears Reuses Existing Carrier
Arrgesive Traction
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

Lowest Price! Guaranteed! Request A Price Match

Qualifies for Free Shipping

4WP PROTECTION PLAN

Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!

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Power Trax Chrysler 8.75 Inch Lock Right Locker - 1240-LR

Part Number: PTX1240-LR

Power Trax Chrysler 8.75 Inch Lock Right Locker - 1240-LR

Be the first to review

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Universal Fit
For Use With 30 Spline Axles
For Open Differential Only
With Removable Carrier
No Need To Set Up Gears Reuses Existing Carrier
Arrgesive Traction
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

Lowest Price! Guaranteed! Request A Price Match

Qualifies for Free Shipping

$666.15

On Backorder

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Power Trax Chrysler 8.75 Inch Lock Right Locker - 1240-LR

Part #: PTX1240-LR

$666.15

On Backorder

Email me when this product comes in stock

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How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Universal Fit
For Use With 30 Spline Axles
For Open Differential Only
With Removable Carrier
No Need To Set Up Gears Reuses Existing Carrier
Arrgesive Traction
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

Lowest Price! Guaranteed! Request A Price Match

Qualifies for Free Shipping

4WP PROTECTION PLAN

Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!

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Power Trax GM 14 Bolt 10.5 Inch 30 Spline Open Case No-Slip - 9207053000

Part Number: PTX9207053000

Power Trax GM 14 Bolt 10.5 Inch 30 Spline Open Case No-Slip - 9207053000

Be the first to review

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Universal Fit
For Use With 30 Spline Axles
For Open Differential Only
No Need To Set Up Gears Reuses Existing Carrier
Smooth Street Maners
California Residents: WARNING

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PROMOTIONS AUTOMATICALLY APPLIED

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$540.58

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Power Trax GM 14 Bolt 10.5 Inch 30 Spline Open Case No-Slip - 9207053000

Part #: PTX9207053000

$540.58

On Backorder

Email me when this product comes in stock

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Universal Fit
For Use With 30 Spline Axles
For Open Differential Only
No Need To Set Up Gears Reuses Existing Carrier
Smooth Street Maners
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

Lowest Price! Guaranteed! Request A Price Match

Qualifies for Free Shipping

4WP PROTECTION PLAN

Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!

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Power Trax GM 10 Bolt 8.6 Inch 30 Spline Open Case No-Slip - 9207863005

Part Number: PTX9207863005

Power Trax GM 10 Bolt 8.6 Inch 30 Spline Open Case No-Slip - 9207863005

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How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Universal Fit
For Use With 30 Spline Axles
For Open Differential Only
No Need To Set Up Gears Reuses Existing Carrier
Smooth Street Maners
California Residents: WARNING

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$409.99

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Power Trax GM 10 Bolt 8.6 Inch 30 Spline Open Case No-Slip - 9207863005

Part #: PTX9207863005

$409.99

On Backorder

Email me when this product comes in stock

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Universal Fit
For Use With 30 Spline Axles
For Open Differential Only
No Need To Set Up Gears Reuses Existing Carrier
Smooth Street Maners
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

Lowest Price! Guaranteed! Request A Price Match

Qualifies for Free Shipping

4WP PROTECTION PLAN

Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!

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Power Trax Toyota Land Cruiser 8.875 Rear 30 Spline Open Case No-Slip - 9220883005

Part Number: PTX9220883005

Power Trax Toyota Land Cruiser 8.875 Rear 30 Spline Open Case No-Slip - 9220883005

Be the first to review

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Universal Fit
For Use With 30 Spline Axles
For Open Differential Only
For Rear Applications Only
No Need To Set Up Gears Reuses Existing Carrier
Smooth Street Maners
California Residents: WARNING

+ View More Specs

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Power Trax Toyota Land Cruiser 8.875 Rear 30 Spline Open Case No-Slip - 9220883005

Part #: PTX9220883005

$398.99

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Fitment: Universal Fit
For Use With 30 Spline Axles
For Open Differential Only
For Rear Applications Only
No Need To Set Up Gears Reuses Existing Carrier
Smooth Street Maners
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Eaton Detroit Locker Dana 35 Super 30 Spline 3.54 UP Automatic Locker - 162C66A

Part Number: EAT162C66A

Eaton Detroit Locker Dana 35 Super 30 Spline 3.54 UP Automatic Locker - 162C66A

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Fitment: Universal Fit
For Use With After Market 30 Spline Axles
For Use With 3.54 And Up Gears
Automatic Locking
Legendary Traction
Unmatched Durability
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$999.99

$1,054.34

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Eaton Detroit Locker Dana 35 Super 30 Spline 3.54 UP Automatic Locker - 162C66A

Part #: EAT162C66A

$999.99

$1,054.34

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Fitment: Universal Fit
For Use With After Market 30 Spline Axles
For Use With 3.54 And Up Gears
Automatic Locking
Legendary Traction
Unmatched Durability
California Residents: WARNING

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Power Trax GM 14 Bolt 10.5in. 30 Spline Lock Right Locker - 1955-LR

Part Number: PTX1955-LR

Power Trax GM 14 Bolt 10.5in. 30 Spline Lock Right Locker - 1955-LR

5.0 5.0 (1)

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Fitment: Universal Fit
For Use With 30 Spline Axles
For Open Differential Only
No Need To Set Up Gears Reuses Existing Carrier
Arrgesive Traction
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Power Trax GM 14 Bolt 10.5in. 30 Spline Lock Right Locker - 1955-LR

Part #: PTX1955-LR

5.0 5.0 (1)

$452.73

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Free! Curbside & In-Store Pickup: Select A Store Near You

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Fitment: Universal Fit
For Use With 30 Spline Axles
For Open Differential Only
No Need To Set Up Gears Reuses Existing Carrier
Arrgesive Traction
California Residents: WARNING

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