First cut some holes in the skid that are distanced from the frame rails

I used some 2"x0.25 angle for the brackets that will weld onto the frame to hold the skid up and cut some holes in them

Then cut some tubing into 1" chunks and took a 3/4" washer and welded it to one end of the tubbing.

Then put the bolt through the washer with the head recessed in the tubbing

Then put the bolt through the angle and put a nut on the backside and tack the nut to the angle so installation doesn't require two wrenches

Here it is ready for instalation.

Then I put them over the holes in the skid and tacked them to the topside of the skid.

After that we flipped the skid up onto the frame and lined everything up and I tacked the brackets to the frame. (loosten the bolts just a little so there is some slack so you can get them really good and tight when the rig is right side up so it wont rattle against the frame.

Then I took it back apart and welded everything solid.

Thats pretty much it.