59' 1/2 ton...While installing my new aftermarket wheels, I noticed the 3 rivits on the mounting surface. These rivits wont let the new wheels set flat against the hub...(the original wheels recede in these rivited areas)... can and should these be ground down?

I'm concerned with this because I put on about 40 miles yesterday stopping every 5-10 to retighten the lugs. They didnt start staying tight till about the end of the trip...