Eaton ELocker FAQ’s

How do I activate my E-Locker? E-Lockers are activated by a dash or console mounted switch.

What is the Warranty on the E-Locker? E-Lockers are guaranteed for one year against manufacturers defects.

What OE vehicles are equipped with the E-Locker? The GM H2 and H3 Hummers have factory Eaton E-Locker options.

Are ELockers rebuildable? Yes. Depending upon your needs, several types of service kits are available – the gear service kit, locking mechanism kit, stator/armature kit, and the universal wiring kit.

What locking modes does an ELocker have? The E-Locker operates as a standard (or open) differential. When the Elocker is engaged, the ball ramps or pins are energized, causing full lock.

Can I just purchase the wiring harness? Yes, the wiring harness is universal to fit any vehicle, and can be purchased separately.

Is a relay necessary for ELocker operation? That switch cannot handle the current that the E-Locker needs.  Therefore the relay is needed to run both the E-Locker and the switch.

Can the ELocker be engaged “on the fly”? Yes. You can engage it on the fly up to a certain point, probably around 15 – 20 mph.  However, you must be careful that the wheel speed difference (between the right and left wheel) remains low, under a 50 rpm difference.  Therefore we specify that the vehicle speed should be below 3 or 5 mph when engaging the E-Locker.

Does ELocker have any special installation requirements? Yes. All Dana 30 and 35 model E-locker differentials require LM102949 bearings and LM102911 races. See installation instructions.