I have the Gov-Lok in my 83 C10 and that thing has saved me countless times.
I had a Detroit locker on the Safari AWD, and I have an Eaton Gov-Lock on the K-10. I prefer the Eaton Gov-Lock.
The thing about the Detroit locker is that it will not unlock under power; you have to take your foot off the gas to unlock it. Until you do, you are running straight axle, and bad things can happen, particularly on slick surfaces like packed snow. The rear end will break loose and it's easy to end up in the ditch. The Safari AWD came with a video and warning sheet on the Detroit locker.
The Eaton Gov-Lock will unlock at the correct speed even under power.
This is definitely spot on, I've never been stuck with it, you just have to take your time (2wd problems haha)
Can't say much about assembling one, but there are some small centrifugal pieces in there, which made removing and replacing the spider gears a little tricky.
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