Gulfsuper I heard one mention of caster you said looked pretty evan...you know caster on straight axle trucks is adjusted with a tapered shim on the axle where it attaches to both springs. It has to do with how well your wheel (steering) returns to center after a turn. With these trucks the more + camber the more powerful the return to center . Also if the axle is twisted its harder to adjust and be equal. In your case would look at spring pivot bolts and you hit close to home on that tow out. I check tow in with 2 yard sticks inside the tires front and rear. If you walk down the driveway and look back at it you can see the toe and camber.