Before you change the springs buy a set of good drag tires As far as a pinion snubber don't waste your time or money, a good set of springs will never let the snubber hit the floor The springs you have should work well with a good set of tires as long as the rear shocks are not topping out Did you clamp the front half or all of the springs?

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)