Thanks again KevinV!!!!
This took all of about 5 minutes. I removed the Delta hitch that I had on the top of the bed immediately behind the cab. Those holes measured the exact same distance apart as the holes in the expansion increments for load hauler I picked up from Harbor Freight Tools

Mounted it with some spare bolts, washers and nuts. Extended the bar to the bed width of my truck and whammo! It's installed.
I took some pics but they are too large to upload.
Total invested. $12 for the load hauler. $19 years ago for the delta trap. Nuts and bolts were spares from the toolbox.