You have to be careful with universal shackles. If the bolt holes in the shackle are not the same as the bolt holes in your leaf springs, you will have major wear problems, and probably some handling problems. Same for the spacing between the bars, unless they are the two independent bar shackles. Those are not recommended either since they do not provide as much lateral stiffness as the single piece shackles. Spend the extra $20-25 and get the right ones and save yourself some grief.