Those Colby Valves are cool. I didn't know about them. Looks like I have something else to buy for my "spare parts" collection. :)
Thanks for the tip!
And I second the process of slightly loosening the lug nuts and driving the vehicle around a bit. A couple of slow speed, hard stops forward and in reverse has always done the trick for me.
Of course, it's too late to do that once it's up on the lift, so people reach for the pry bars and sledge hammers thinking (hoping) the stuck rims will quickly loosen. In my experience, they usually don't. So IF I stumble upon that problem, I lower the vehicle, put the lug nuts back on within a thread or two of touching, and do a couple of hard, slow speed stops. Knock on wood, that has always worked without having to break much of a sweat.
~Rick