alan0043 Posted January 24, 2017 Report Share Posted January 24, 2017 Hi Everyone, I am starting to get the truck ready for the air hitch. I will be using 4"x4"x1/2" angle steel to support a 1/2" plate that the hitch will sit on top of. It was suggested that I use a tapered bridge reamer to drill the holes in the truck frame. I have done a search on line with no real luck. I also did a search on You Tube. Looking for, how to use a tapered bridge reamer. My question is, do you drill a pilot hole first then go the tapered reamer. What size pilot do I drill. I am planning on using a 9/16" reamer. Also part of the plan is to use six 1/2" grade 8 bolts per side to hold the angle steel. If the bolts seem to small what use would you use ? All input is welcomed, Al Link to comment Share on other sites More sharing options...
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