you need some sort of bracket designed for it, there are several manufacturers. DO NOT skimp on this, it could KILL someone. you CAN NOT bolt a tow hook to the front bumper. It would be a better idea to wrap a strap around the front axle (not that that's a good idea, but it's a better idea)
I didn't feel like paying for them either a few years ago, so I made some by getting a piece of 1/4 inch steel plate and making 2 of them very similar to the other ones out there. If you make some, 1/4 inch plate should be considered a MINIMUM, and be sure to tie it into all 3 bumper bolts, AND the hole that's 8(?) inches behind that, and on the driver's side you can use the steering box bolts also if you like