general jackson
Newbie

full drop is when the suspension is in the furthest down position. If you jack up your truck with both front wheels off the ground that is basically full drop, the suspension is in the lowest postion. You are correct on full lock, either fully to the right or left. I only test fitted the xd monster with +18 offset with no tire on it I had about 1/4" clearance with full drop and full lock (with the UCA) ... at a normal stance (wheels on the ground) I would assume probably be about 1/2" of clearence. I didn't go with this rim because I figured with an oversized tire I would be rubbing with the UCA but I can't tell you for sure. I have personally seen silverados run this rim though. Every truck is different. Hope this helps.... if u need anything let me know

oh and I'm running 285x65x18 tires ...