One of the leaf packs had a broken center bolt so I tore that one apart first to clean up and paint. Well, I found some not so great news. The main leaf has a crack that is a few inches long coming from the center bolt hole.
Now I need to get two new main leaves. We have a few spring shops in my area and I hope they can make what ever I need. I have looked online at every spring I could think of and none are a perfect match to these.
The Superlift springs measure 26'' x 31'' that's center of bushing following the springs curve to center of the center bolt. And the arch is 9 1/4'' with a straight measurement between the center of bushings of 52 9/16''.
The closes spring I have found is a 56'' chevy square body spring it is 26 x 30 with a 7 1/4'' arch.
Close ones I looked at.
97-03 F 150 26 3/8'' x 32 1/8'' 8 9/16'' arch
73=91 c20 26'' x 30'' 6 1/4 arch
86-03 Ranger 25 3/4'' x 31'' 6'' arch
99-06 Silverado 32'' x 32'' 6'' 7/8 arch (requires moving the front mount forward)
The longer measurement is the back half of the spring and I think I could use 1'' less since my shackles really seem close to my hitch and are laid back. So the 54'' chevy spring rearched from 7 1/4'' arch to the Superlifts 9 1/4'' arch seems like the way to go if I cant get some made.
Link to 54'' Chevy main leaf.
1973-1987 GM Truck Main Leaf Spring | General Spring
The other thing about the Superlift springs is that they seem to have proprietary bushings in the eyes. How would I replace them easily especially since they are in there SOILD and might get destroyed trying to remove them to get measurements. With a common main leaf it would be simple to get bushings.
It's always something...….