i just got 16x8 wheels and now my car is all over the road follows the ruts and everything else. what would cause this? all the steering stuff is 2 years old except the centerlink, upper strut mounts, steering box and rag joint. the ragjoint and steering box feels tight.

 

Could be alot of things.
Check the centerlink for play. Check the wheel bearings, Lash between pitman shaft and rack piston, thrust bearing, and if the steering box is loose on the frame. With a wider tire on there it will track a little more than your used to. Especially with a worn suspension. Worn control arm bushings, tierod ends, and idler arm will also allow steering to wander.