Ok, didn't check back on this thread after someone gave me the bumper cover screw size and I wish I had.

Here is where I landed. I ran ( cheap HF ) dies on each bolt (5) @ M6x1 and and I had (4) new bolts for the main skid. Dies cleaned up the bolts, or maybe they just cut new threads, no idea but i kept on going.

Next, I ran the taps (cheap HF) up through each hole. Wasn't real easy or real hard and shavings were coming out. After each hole, I finger tightened a new bolt up into it to make sure the bolt would go. I thought they felt a bit loose, but kept going.

Here's where I'm not to happy. I could tighten 2 of the skid bolts to what I thought was tight enough, but not they other two. They are stripped again. I also found that the bumper cover bolts were similar.

I want to re-tap all of the holes for new bolts one size up. I looked at some tap and drill charts, but I'm confused. Can someone give me the proper method for finding the next size so I can get the skid solid again. I will buy good taps and a good tap handle as the HF tap handle really sucked.

I'm almost ready to just drive some self tappers in there.