I am looking at buying some old OEM rims to go on my rig. All that I can seem to find are the older drum brake style. I did the search thing and found some info and I looked at the FAQ section about OEM wheels, but I still do not have the full picture. I have read that you can grind down the rivets on older rims to get them to fit on disk brakes. Is this a common practice and has anyone had any safety issues with doing this? Like the wheel coming apart? I have also read that you can grind down the caliper to get the rim to fit. Opinions please on the preferred method.