someone let me know waht the heck is goin on.....when im drivin my 4th gen,the faster i go,the more my joint shakes.....it only does it when im coastin,not when i accelerate,do i need an alignment?...its so bad, i got on the highway and thought that one of wheels was about to come off or something,i almost couldnt hold on to my steering wheel it was so bad.......PLEASE HELP!!!

have your tie rods looked at. and you wheels might need to be balanced.

get your wheels balanced and roated, and make sure all your lug nuts are tight.