Jesussaves: I had the same issue for a little, what i did was take the whole knuckle out and clean out the inserts with rubbing alcohol along with the screw and clean them up. i then reassembled them with blue loctite on the screw and since then i haven't had any issues. You can give it a try. just maybe the loctite isn't hearing to the surface?
This Saturday is our start of the Arizona Winter Series and i've gone over the buggy and i am very happy with the wear on it and cant wait to see how it does this weekend at The Nitro Pit. I must have a little over Four gallons now on the chassis and the only wear spot is in the rear witch is normal. Cant wait to get another gallon or so out of it and see how thin i can make it haha.