I have an Eaton 17220 or 17221 rear axle.
I cannot figure this out...
It drives in low range fine. It shifts into high range smoothly.
But in high range it will seemingly slip out of gear and start an absolutely horrible racket back there that sounds like I just pushed the "commence self destruct sequence" button.
I removed the shift motor and blocked the shift arm over with a dummy motor (hard into the "high range" position) and it worked fine. Then I checked the motor and the electrics. Everything "seems" to be fine.
I always thought the 2-speed rear end was supposed to as reliable as the day is long...
Any ideas?