
The Eaton ELocker is an electronic, selectable differential designed for drivers that need traction on demand. It is ideal for off-roading, trail riding, rock crawling, and towing. When activated, the electromagnetic stator actuates the ball-ramp system, locking the axle and driving torque to both wheels. This allows the vehicle to overcome challenging terrain and provides smooth performance. While some users have expressed a preference for air lockers due to their instant locking capabilities, others have praised the Eaton ELocker for its performance and reliability in various driving conditions.
| Characteristics | Values |
|---|---|
| Type | Electronic locking differential |
| Use | For drivers that need traction on-demand |
| Activation | Dash-mounted switch |
| Functionality | Locks and sends torque equally to both wheels |
| Deactivation | Second flip of the switch |
| Performance | Smooth performance and cornering |
| Axles | Forced to rotate at the same speed |
| Vehicle compatibility | Daily driven trucks, 4x4s, extreme competition vehicles, Jeep, Toyota |
| Installation | Drilling a hole through the axle housing or carrier for the wire |
| Current requirements | 5-10 amps |
| Gear oil | Petroleum-mineral based oil recommended |
| Warranty | 1 year |
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What You'll Learn

The Eaton ELocker is an electronic, selectable differential
The ELocker is a popular choice for drivers who require full axle lock for obstacles and low-traction conditions. It can be easily integrated into a vehicle, offering manual control and ECU logic (auto-locking) operation. The selectable operation allows drivers to switch between an open differential and a 100% locked unit with a flip of a dash switch.
The ELocker's four-pinion gear design provides smooth engagement and validated strength. While it is designed to accommodate harsh use, continuous abuse and extreme speed engagement can decrease the life of the ELocker. Therefore, it is recommended to engage the ELocker only when the vehicle speed is below 5 mph.
The installation process for the ELocker is straightforward, requiring drilling a hole through the axle housing or carrier for the wire. Select models, such as the Dana 30 and 35, also necessitate the use of non-OEM bearing sizes. The ELocker is compatible with most gear oils, although a quality, petroleum-mineral-based oil is recommended.
The Eaton ELocker is a reliable and versatile solution for drivers seeking on-demand traction and high performance in various driving conditions.
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It is designed for drivers that need traction on-demand
The Eaton ELocker is an electronically actuated locking differential designed for drivers that need traction on demand. It is a popular choice for drivers who require high-performance applications, such as off-roading, trail riding, rock crawling, and towing. With the flip of a dash-mounted switch, drivers can go from an open differential to a 100% locked unit, providing maximum traction to overcome challenging terrain.
The ELocker's selectable operation allows drivers to activate the unit only when needed, making it ideal for daily driven trucks, 4x4s, and extreme competition vehicles. When activated, the electromagnetic mechanism locks, forcing both wheels to turn at the same speed, regardless of traction. This feature ensures that even if one tire is off the ground, the tire with traction will keep the vehicle moving.
The ELocker is also easy to integrate into a vehicle, with manual control and ECU logic (auto-locking) operation. It offers smooth engagement and validated strength, making it a reliable choice for drivers who require traction on demand.
While the ELocker is designed to accommodate harsh use, it is important to note that continuous abuse and extreme speed engagement can decrease its lifespan. Additionally, when engaging the ELocker, it is recommended to keep the vehicle speed below 5 mph to ensure optimal performance and prolong the life of the unit.
Overall, the Eaton ELocker is a versatile and reliable solution for drivers who require traction on demand, providing smooth performance and the ability to tackle challenging terrain with ease.
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It is ideal for daily driven trucks, 4x4s, and off-roading
The Eaton ELocker is an electronic, selectable differential designed for drivers who need traction on demand. It is ideal for daily driven trucks, 4x4s, and off-roading. The ELocker is the most reliable on-demand differential, featuring selectable operation and net-forged gears for added strength. It is designed for high-performance applications, including off-roading, trail riding, rock crawling, and towing.
The ELocker can be activated by flipping a dash-mounted switch, which is included with all new ELockers. This activates the electromagnetic mechanism, locking the differential and capturing 100% of the available torque, sending it equally to both wheels. This feature ensures that the vehicle can overcome challenging terrain and obstacles, such as rocky trails or muddy ditches, with maximum traction.
The ELocker is also easy to integrate into the vehicle, with manual control and ECU logic (auto-locking) operation. It offers smooth performance and cornering when deactivated and the high torque capacity of the ELocker makes it a natural choice for vehicles that need full axle lock for low-traction conditions.
While the ELocker is designed to accommodate harsh use, it is important to note that continuous abuse and extreme speed engagement will decrease its lifespan. Additionally, when engaging the ELocker, it is recommended to keep the vehicle speed below 5 mph to ensure optimal performance and longevity.
The Eaton ELocker provides drivers with the flexibility to switch between open and locked differentials, making it a versatile option for various driving conditions and an ideal choice for daily driven trucks, 4x4s, and off-road enthusiasts.
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It is activated by a dash-mounted switch
The Eaton ELocker is an electronic, selectable differential designed for drivers that need traction on demand. It is ideal for off-roading, trail riding, rock crawling, and towing. The ELocker can be activated by the driver at the flip of a dash-mounted switch, which is included with all new ELockers. This switch can be placed on the dashboard or console, depending on the driver's preference.
When the ELocker is activated, the driver can go from open to 100% locked. This means that the electromagnetic mechanism locks, capturing 100% of the available torque and sending it equally to both wheels. Both axles will be forced to rotate at the same speed, regardless of traction. This feature is especially useful when encountering obstacles such as rocky trails or muddy ditches.
The ELocker's dash-mounted switch offers easy and convenient activation for drivers. It is important to note that while the ELocker can be engaged "on the fly," Eaton recommends engaging it only when the vehicle speed is below 5 mph. Additionally, continuous abuse and extreme speed engagement can decrease the lifespan of the ELocker.
The installation process for the ELocker is straightforward, and it can be easily integrated into the vehicle. However, it is important to follow the instructions carefully, including drilling a hole for the wires and ensuring proper wiring. Overall, the ELocker's dash-mounted switch provides a simple and effective way to activate the locking differential, enhancing the driving experience, especially in challenging terrain.
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It is easy to integrate and comes with a one-year warranty
The Eaton ELocker is an electronic, selectable differential designed for drivers that need traction on demand. It is easy to integrate and comes with a one-year warranty. The ELocker is the most reliable on-demand differential, featuring selectable operation and net-forged gears for added strength. It is designed for high-performance applications, including off-roading, trail riding, rock crawling, and towing.
The ELocker can be easily integrated into the vehicle, with manual control and ECU logic (auto-locking) operation. It is activated by a dash-mounted switch, which is included with all new ELockers. A wiring harness with a relay switch, chassis electrical system-protecting diode, and fuse are also included with all aftermarket performance ELocker differentials.
The installation process is relatively straightforward, requiring only the drilling of a hole through the axle housing or carrier for the wire. This is included in the instruction card that comes with all new ELockers, as well as in the downloadable instruction manual. Select models of ELockers also require the use of non-OEM bearing sizes, such as the Dana 30 and 35 models.
The Eaton ELocker is warranted for one year against manufacturer defects. While ELockers are designed to accommodate harsh use, continuous abuse and extreme speed engagement will greatly decrease the life of the ELocker and are not covered by the warranty.
Overall, the Eaton ELocker is a reliable and easy-to-integrate solution for drivers who need traction on demand, backed by a one-year warranty.
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Frequently asked questions
The Eaton ELocker is an electronic, selectable differential designed for drivers that need traction on demand. It is designed for high-performance applications including off-roading, trail riding, rock crawling, and towing.
The ELocker can be activated by a dash-mounted switch. When activated, the electromagnetic stator actuates the ball-ramp system to engage the locking ring with the side gear via the push rods, forcing both axles to turn at the same speed. Deactivation is achieved by turning the switch off, which lets the wave spring disengage the locking ring from the side gear.
The ELocker provides smooth engagement and validated strength, making it ideal for overcoming challenging terrain. It is also easy to integrate into the vehicle, with manual control and ECU logic (auto-locking) operation.











































