Is 1/2" leaf spring relocation worth the trouble?
I have my 1/2 spring offset is essentially complete. I still have to move the perches on the rear.
Utilizing which looks like a 1/2" factory hole thru frame rails, modifying the factory spring perches, a shim, an 8" grade 5 bolt and a bushing for the spring eye to secure the front. Copying member made brackets for the sliders somehow or another the rear spring eye ended up precisely at the end of its slider travel. At first this was not the case as using visual references, I guessed where the sliders mounted on my brackets...they didn't. I moved them forward 1" inch which coinced with the holes in the sliders which actually worked for the better as before I only had 2 bolts securing them to the brackets I now have 4.
I assumed when making the brackets they would be "plumb and square" to the frame torque box where they attached, actually was not. I shimmed the outside of the brackets and once I got them looking a little better and snugged up I drilled a hole in the back of my mounting bracket thru the frame and put another bolt to keep it centered and tightened it all up. This worked out good as I wasn't keen on having 2 bolts holding the slider brackets to the frame. I must have done something right as after all is said and done I'm pretty close to 42" and the springs are just clear of the inside edge of the wheel wells.