The Detriot EZ-Locker is an inexpensive but very effective means of obtaining a true locking differential in your Jeep. Recently we picked up one from OK Auto and installed it into Glenn’s 85 CJ-7. His Jeep was equipped with a Dana 44 wide-trac axle with an open differential. Note: Detroit no longer makes the EZ-Locker but PowerTrax makes a near identical product called Powertrax Lock Right locker.
First safely support the Jeep on jack stands and remove the rear wheels. Remove the differential cover and drain the gear lube. Remove any old gasket material and clean up the inside the housing to remove any debris.
Remove both axles. Remove the differential carrier bearing caps and with a little prying the carrier assembly should come out. Note: some rears do not require removing the carrier. The AMC model 20 does not. The ring gear was then removed and the locker gears were installed following the directions supplied.
The reverse procedure is followed for re-installation. After refilling the gear lube we went for a test ride, the driving characteristics were noticeable especially when shifting and cornering. It takes some getting used to so be careful. The project took a little longer than we had hoped but we got it done in two days.
The hardest part was getting the differential out of the axle housing and cleaning up our bloody knuckles. After a couple of trail rides it is obvious the difference one makes, you get a feeling of more control and less effort is put into navigating obstacles.
Glenn twisting his Jeep at Paragon Adventure Park.
NOTE: Detroit no longer makes the EZ-Locker but Powertrax makes an equal product called Powertrax Lock-Right.
