assuming my pulling issue is a brake caliper hanging up or somthing. There is also an on-center vagueness at interstate speeds. I assume this thing tracked straight as an arrow when new.

Do the sagging rear springs affect the car in a way that makes it wander vs hold the line? Or perhaps the alignment compensation made from the sagging rear introduced a bit of something.

If I do replace the springs are there some other "while I'm in there" parts that should be done. The shocks are new.