that or wheels are bent
try switching you tires, as in put rears up front, and fronts to the rear
that might solve the problem - if so, you know its the tires, if not - it's something else
member and partial creator of the Pimpin' The Auto
m20 pwr: "oh yeah baby, pour some acid on my penis"
R.I.P. fast 6
keep it clean
and most of all have fun driving"