Ok Fred, Give us more info on the spreader bar, what it does, and why it is critical. I just put new wheels and tires on a W210 and want to get it checked just in case. (plus it may be pulling just a hair to the right since I replaced the brake rotors in the front and had to wail on the right rotor pretty hard with a 5 pound beater to get it off. Yeah I know I should have used a puller, but it was at my other garage at the time) Also, will incorrect toe cause reaction to crowns in the road?