depends on how severe the shaking is... a slight loping feel is normal with a v8, but a moderate shaking isn't. If they try telling you it is normal, get them to bring another one to the service drive for comparison. The beauty of the dealer, is they have many other cars there just like yours for comparison with perceptive problems like that. You can also ask for the shop foreman to ride along with you, that way he can can decide if it is more than "normal" and make the techs spend more time on it before saying "no problem found, normal characteristics, or could not verify complaint" I hate when the newer, lower level techs let cars go because they can't find a/the problem... customers don't bring in a car just to mess with you, they really have a problem they want fixed!

__________________
You make something idiotproof, they'll make a better idiot


You think professional is expensive, just wait until you pay for amateur.