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I'll have to check my spindle, but my humvee was in the army reserve up until 2013 at least. Last service was in 2013 with an engine rebuild
Yep, it's expensive. But I bet once you priced out the civilian locking kits you'd find it's probably on par with their price. And theirs is not a positive lock. And everytime you remove the hub to replace the crappy seals in the hubs you'll be replacing the $8 geared washer.
So all vehicles were required to have what, lock nuts? lock washers? What was the design they used and how well do they stand up to backing off and causing major problems on the road?
Say what you will, the steel wheels are pretty hardcore and withstand a lot of crap that they get off road... I've been in situations before where I surely thought the wheel was going to be bent or worse.
ahh my point and worry is all of the added weight and stress to the spindle if not needed (not in a time of war or combat,and driven mostly on the hard roads at higher speeds) once you have taken one of these apart which all should and make sure you have had the upgrade done to the nut and key washer and the teeth are properly in the notches you understand how frail this spindle coming off could be. There was also a similiar scare of the stock engineered setup with the H2s when they came out with the front wheels coming off
The early style spindle nut only had one tab for the lock washer to engage and these were found to be unreliable, so they were replaced with the later style that has 2 tabs per side.
Yes, there have been failures, whether it is "often" or not I'll leave for you to decide. IMO, it's the most unsafe thing of the HMMWV/H1 design. Two members on the Hummer Network had wheels fly off at interstate speeds this year. It's not exactly a large crowd of owners.
