whatever way fits is fine, all that does is keep the spring pack centered with the axle. After you get those u bolts nice and tight and after driving it around some making sharp turns retighten those u bolts. The alignment pin is supposed to go in the hole those bolts are in backwards for a "under axle" spring perch. They may be a bear to get out. I have used a grinder and rounded down the hex end so it will fit in the pin holes but of course you play heck later is you ever need to get that spring pack back apart. ( which Ive never needed to do anyway)