The superduty E-Locker will bolt into any sterling 10.25" differential going all the way back to 1984. All you have to do is route the wires to power the solenoid actuator. If you know how to set up gears, you can have an E-locker in your existing axle.
Some of you may recall this thread from a little while back, where I had purchased a used factory Ford E-locker and did some investigating by taking it apart: https://www.oilburners.net/threads/ford-factory-e-locker-teardown-and-some-discussion.90536/ This weekend, I finally found the time and...
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And don't get scared by the electrical plug I used. There are simpler ways to route the wires.
As for the rear brakes, I found that when working properly, I can chirp all four tires on dry pavement with the E-brake (4wd engaged). When they work right, they are very effective.
Most of us are not fans of drum brakes but there seems to be plenty of threads discussing the problems with drum brakes on these trucks, in particular. Most of the comments seem to be about the automatic adjusters not working. I was also having problems with the parking brake not working very...
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