I have been installing the lift for a solid day and I ran into a problem. The problem I'm having is drilling out the C4P body bushing which is the last one towards the rear of the cab on the passenger side. I don't think I could drill that thing out with a carbide bit the metal is so hard! Is their something else I could use to get it so the 1/2" bolts will go through it? The only thing I can think of is using a torch to blow through the threads, but that is a last resort. Any help would be greatly appreciated!