i have 24" semi wheels on my dually with pirelli tires and they shake like hell. no car shop can balance them b/c the center hole is too big, and the big rig shops want to do them on the truck, which is fine, but they have to pull the axles out and spin them together b/c of the limited slip rear end. i really don't want to pay a shit-ton of money just to balance the tires, but they're shaking me to death. put new shocks on the back and that helped a little, but they could still use some help. what are you other guys doing with similar setups?