Hey guys. Just kinda a learn from my mistake suggestion here. I recently put the rough country 1.25" body lift on and the was a rattle right where the body mount on the passenger rear, the mount right under the back seat. I spent 4 days trying to find it I took the mount out retightened it. Banged on everything with a rubber mallet. Couldn't find it. I was seriously on the verge of drivin off the nearest cliff. Finally I got under the truck again and noticed the the huge metal washer thing that the body bolt goes through was touching one of the new bolts I put in. I ended up sanding the side flat so it passed the bolt and rattle gone. My truck survives another day. Just thought I would share for others if they run into the same thing.