:givemebeer:Well, I started with a 3/8 to pilot and moved up incramentally. What I found as to why I had to drill the frame in the first place is there was welded:welder: in place a box frame rail right over the inboard mounting hole 3/8" thick! Ultimately I had to use a 5/8 hole saw to overcome this double surface frame and patch. Sure enough there was some counter torquing occasionally when the drill bit caught an edge but using hammer drills on high aggregate gunite prepared me for this. :twisted: While I may have burned up the bearing on my 1/2" drill I punched through. This patch plate is thick enough though, I've got to run to Fastenal and get a longer bolt. Now I've just got to contend with torquing the left side under the steering box, haven't figured out how to get a socket on the inner nut for the 150 ft/lbs it needs, going to have to get creative I suppose.
Overall, the extra time it took left me opportunity to scan for the winch I'm going to purchase. Given the comments herein and elsewhere I'm leaning for a 4 1/2 ton Superwinch
