I used aftermarket hooks that are cheap and available at most any parts store. You'll need to drill mounting holes. though. I put them on around 30 years ago and have used them a lot without any damage, usually pulling logs out for firewood. I've put enough load on them that my K20 couldn't move the load in 4Low. They look like these:
I mounted them just ahead of the spring mount and behind the bumper. Since they're upside down I used the optional springs to keep the chain hook from falling out of the tow hook. Also fabbed 3/16" or 1/4" thick spacers to fit between the tow hook and the frame (needed so the front of the tow hooks will clear the front bumper).
They don't look as cool as stock-type hooks and you need to drill holes, but they're cheap enough and they sure do the job.