I bought a rear leaf spring bushing kit by Energy Suspension and everything seems to fit very well. But now that I am mounting the shackle bushings onto the frame rail, the bushings seem too short. I have tightened the bolt all the way down until the nut hits the shank of the bolt yet I can still wiggle one of the shackles back and forth. The shackle on the nut side is super tight and doesn't wiggle at all almost solid feeling, but the other shackle on the head side is pretty loose and wiggles around. Shouldn't both shackles be pretty snug? Maybe after it is driven the super tight side will loosen and in turn tighten the other side and so both sides will be moderatly snug. I am using the stock bolts and stock shackles, was I supposed to buy special shorter shackle botls or something? or maybe it is ok how it is and it wont make that much difference? Thanks for any help, I really want to be able to drive this thing on Monday.