I noticed that my factory "helper" (overload what-ever) leaf is contacting or close to contacting the rest of the spring. I dont know if its is from a bit of sag over the years or if its supposed to be that way.

Most leaf springs have a little bit of clearance from the overload leaf to the main leaf pack to provide a progressive spring.

I could see how re-arching the springs would help soften the ride up.

ALso I replaces all the rubber bushing in the leaf spings with fresh factory pieces, it made a differance. Mine were worn to the point of metal on metal in a few places.

Kevin