If a car "pulls" does that necessarily mean its not aligned? (Radial drift) My 85 300D was initially aligned and tracked great, true as a ruler.

It veered to the left after I rotated tires. I used the standard pattern; I rotated RP to FD and RD to FP and FD to RD and FP to RP. I had learned about Radial Drift several years ago from a great Front End man, so I swapped the front two tires, driver to pass, and vice versa.

The car still veers. Things arent that bad after I put in new coil springs in the rear. Should i take my car in for alignment?The last thing I need is to have to buy new tires!!