lol- sometimes i think its the way i say things! and you havent heard me speak yet! What i meant was that i had a similar problem- nothing to do with Stealth or rolling roads..... but then 4 hours worth is a long time. If youve got a decent jack chief, up each corner- and hold the wheel north and south, and rock it- youll soon know if a bearings on its way out- that'll be your issue. If a CV joint is gone then thats easy to tell- full lock(do it both ways) and turn slowly- it'll click, or you might feel play when you turn....