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It'll sure do that, especially if it's working real good. It's worse in some vehicles than others too. I'd imagine you probably had some real good tires that were either big or gripped the ground real good. You mention even hard pack, so I'm thinking wide tires. Soft rubber or smaller tires that don't grip that ground as good you won't notice the shock through the powertrain near as bad as you mention since the tires are more forgiving. You just had some good tires so you felt every bit of it.
They can, they're for sure stronger in the Full Floater by design. And when they do fail, they don't explode like they do in the 10 and 12 bolts. They'll either strip the teeth off the governor ring or break the spring loaded governor itself. The good thing there too is, since it don't explode, it won't leave you stranded. It just won't lock up anymore is all. So many times, people will claim it's great and there's is holding up and they don't realize it's not working since they're able to drive and it's not making any strange noises.
That sorta makes sense, but that's not the way Eaton describes it. They claim it locks up at speeds up to I beleive it was 20mph and never said anything about it staying locked up. It does seem to be a good system on paper and by design. Just to bad it doesn't hold up to abuse, though the 14b FF does certainly put up with some BS. I had one and didn't know that's what it was. It was quite old and still working properly when I realized I had a locker. I had abused the hell out of it and it's age, I'm sure previous owners had their chance to abuse it also. But I can say the same for a 12 bolt. That 80GMC I had a Gov Loc and it worked exactly as described as it should in about 2012, so that's 32 years old. Although it was owned by an old man and was the old junky gutless Olds Diesel, then converted to Olds 350 gas.
Here's a video from Eaton.
Yes, I see that. So like, if all the you did was lift off the skinny pedal for half of second, then it would unlock and when your buried your foot back in it, it would be unlocked unless it slipped again, but then again maybe not if you're going to fast to engage it.
