Nuts & bolts man, nuts & bolts. I drove myself "nuts" not having replacements. Specifically, if you're taking off the front CA's, get yourself some new grade 8 hardware. The existing nuts were locknuts, and I was unable to reuse them. Also, I had to cut some of my shock bolts, so new shock bolts & speed nuts were useful. As for the size, I should have written it down, but I went back & forth to different hardware stores so many times, I lost track.