I installed a set of 33x12.50x16.5 BFGs on my 05 and have been hearing a lot about these green keys and the levleling kits. What are the green keys, and where can I locate them? Also, do they make a levelling kit for a 4wd HD? I cranked up the torsion bars and did an allignment, but they are almost all the way aup and I am still rubbing a little bit on the inside fenders (both sides). Any suggestions?

Wow, you didn't even bother to look through the suspension section at all did you? Every other thread is a leveling kit thread. Or click search and try leveling and see how much you find. You have much reading ahead of you...