I just came from the dealer where he said that they have had problems with larger than stock rims with wheel shimmy. He said if you do a lot of freeway driving at high speed (@ 75 mph) you are guaranteed wheel shimmy with larger wheels. He said both Infiniti QX and the Armada have the problem (and nearly every SUV/truck does as well). With all the posters on this forum, its hard to believe that 20 or 22" rims cannot be balanced that well (not to mention 24"). What is the truth here? He said the balancing machines can only get it so close and you will have to accept the rest!