I used the Warn winch plate for CJ's. IIRC, its 2 angle brackets that bolt outboard on each frame rail, maybe 2 sleeved bolts thru the rail. Then the winch plate is simply a long C-channel with 4 holes to mount the winch to, then 4 holes (2 per side) that bolt to the angle brackets. The angle brackets point inward, and are barely above the top of rails. There are carriage bolts sticking up thru the angle brackets.