You could do what I did. When I put my SS springs on years ago my 63 actually sat about 1" lower then what I wanted. So I bought some aftermarket shackles from Mr Gasket I believe. I compared the holes as they have about 5 holes to choose from for more height and I selected the one that I felt would raise it a bit. It worked perfect and then I cut the extra shackle off and rounded the edges a bit to make them look stock. And that's because I hate to see a longer shackle hanging under our Mopars. Its been like that since 2008 when I installed the springs. You can see in this pic they look like stock shackles. Ron