I have an 06 ccsb 4x4 that i just replaced all of the steering components on. I used all ac delco parts and a blue top steering box. Im having a problem with the pitman arm nut coming loose on the centerlink. Twice I've climbed under there and found it finger tight. The nut it came with doesnt have a lock washer or anything, its just one of those nuts with the stake marks on it. Anyone had this problem? I dont wanna to weld it lol and I'm scared to drill it and put a cotter pin through it because I'm not sure if thatd weaken it.