What size bolt is the bottom shock bolt? When I bought my IRS it didn't come with those bolts, so I threw in some bolts that were close, but I'm looking for the correct size. Thanks in advance.
I couldn't imagine that the bolt holding the shock to the control arm would have anything to do with camber settings. I'll take a pic of what I'm talking about.
I think Black*Death has it right. The term "flag nut" describes it very well. It's a nut w/a flag welded to it so that it won't spin and you can tighten the shock mount bolt w/only one wrench. I don't think it has an eccentric washer but I think olgreydog's recommendation of getting it from Ford is a good one since the bolt is pretty specific too. IIRC, the part of the bolt w/o threads is longer so threads won't mess up/damage the aluminum lower control arm.