hey guys i have a 91 N/A ever since i got it my drivers seat has been loose but not like the bolts are coming off. when i sit dont its like the rail is bent and the whole seat sways. it also does this when i am driving like when i hit a bump or even acelerating it moves. the seat moves in a twisting motion not forward and back. where is the problem? is there somthing i can do to fix this without spending to much money? thanks