Well, I didn't take the back regulators out of mine, so I can't really help you there. I noticed there was a lot of fore and aft and in and out adjustment on everything so I just left mine in there. Everything does just bolt in, but if it were me I'd find some way to mark everything to get it back close to where it was. I'd also take some pics before taking it apart. If you are going to change 1/4 panels I'd cut the old 1/4s off first, then you can see everything a lot better. Once you get in there you'll understand it a lot better.