Why did my alloy wheel stick...how do I get it off?

Conclusion to the problem...

I tried rocking the truck with TC on with the nuts just slightly loose...Nothing (I was not able to rock much in any case.)

I tried dropping the wheel with slightly loose nut while jacked up about 1-1/2 inches off the ground...Nothing.

I tried the sledge hammer...Success!

I had some Permatex anti sieze, so I used it on the inside mating surface. Very light coat and wiped it smooth.

Will see how it works next time the wheels have to come off.

Thanks for all the help!!