1. Drill the bumper.
2. Install a tow-hook with 3" long bolts & nuts on the backside.
3. After you get the nuts tight, get a piece of chain and trim it to the appropriate length.
4. Slide one end link over the protruding bolt, and put a washer and nut on it.
5. Then loop the chain around the
vertical support of the frame (above the tow bar on drivers-side).
6. Slide the other end link onto the other protruding bolt, with a washer and nut.
At this point, the chain will be slack and rattling. Then you simply tighten the nuts (alternate back & forth). The idea is that as you tighten the chain...it becomes taunt and eventually totally rigid. I first came up with this and shook my head at how simple it was. I thought it was the most redneck thing ever. But, after five years and countless yanks...the chain and tow-hook remain rock-solid. You can jerk on it as hard as you want to. The backing plate is not necessary...just use some thick washers. Here's a few pics that describe what I'm talking about....