Know a person getting ready to do a major suspension change on a 58 frame. Bottom line is leaf springs will probably be available to me. I see in parts catalogs that they are different springs than what is on my 54. Saw somewhere I thought that the difference may be in the width? Are they usable in my application? Someone heated front of mine in attempt to lower truck early in it's lifetime. That and it is also loosening spring clamps. I would really feel better about having better springs on it. Any way to use the 58 springs or should I pass and find a set of correct ones? Thanks G.H.