Air Lockers vs. No Air Lockers

[BroncoHauler]

Originally Posted by kzemach

Hey, can you explain more about this? Is this what the miltary refers to as "brake-throttle modulation"?

I was totally blown away by what we could do in a HMMWV: driving up out of right angle stream bed with a height of at least 3'... we'd literally be balancing on the RF and LR wheel with the other two wheels totally, way off the ground, and could move forward and backwards just fine. To do it, you'd start with the brake engaged while in drive. Then give it some gas, then slowly let off the brake until you were moving, and drive with both the accelerator and the brake pedels depressed. Worked like a charm. The guy who was showing me how to do it said something about there being a danger in quickly releasing the brake during this operation, as it could do some sort of damage, but all that explanation was lost on me; I'm not much of a gear head.

So, is this the same thing, or is there something in the HMMWV that's different?

It's a type of limited slip differential that has a clutch-pack in it, that with the brakes applied at least partially, tightens up more and more until it's almost fully locked. Cheaper and easier than an ARB locker but not as versitile IMO.

[BroncoHauler]

Sorry for responding to myself, but I didn't qualify my answer. I'm familiar with a civilian-market differential like I described, and I ASSUME the military system is similar, but I don't know that for a fact.

[kzemach]

Originally Posted by Bronco_hauler

Sorry for responding to myself, but I didn't qualify my answer. I'm familiar with a civilian-market differential like I described, and I ASSUME the military system is similar, but I don't know that for a fact.

You're probably correct: my understanding was that the H1 was essentially the same, at least for the functionality of the drive components. Thanks for the clarification on the question; I really don't know jack about drive systems so this is all very new to me.