How I did My 3\" wide Ford 57\'s Some of You may know that like a few others I chose to use the 3" wide 57" Ford Bronco springs over the more populer 2.5" 57's. The main reason was they were a 5 leaf pack that I feel will hold up better to the weight of the Blazers toopper and cause I have heard from other about sagging problems with the F-150 packs. First off I'm cheap so I used a front/rear hanger from an 84 dually for My flip. I then welded half of a Chevy shackle to half of a Ford shackle. Actually it was a little more than half of each one ending up with a shackle that was 5" long I used the stock front hanger and had a spring shop narrow the first 3" of the spring (just like a stock front spring) I thought about using a Ford Hanger but that would have moved the center line of the springs out 1/2" from the frame creating alinment problems with the center pins and the axel pads. So far it works really good but I have not gotten a chance to really test it out due to the fact that I need to upgrade My break lines and do the crossover steering to really test the flex on it. I also mocked it up and still need to replace all the bushings and paint it all.