Drilling out the countless factory spot-welds, around the perimeter of the top, in the drip rail, will seperate the inner & outer roof skins, without damaging either one, beyond repair. Patience & a good spot-weld cutter or 1/4" drill bits, will do the job. Begin by removing the factory seam sill in the drip rail, thus allowing the factory spot-welds, to be exposed. Each spot-weld should be hit with a center punch, to eliminate the bit or cutter from wandering. I prefer a spot-weld cutter, so you have a good backup when reinstalling the top cap. Since both sides of the drip rail are accessible, drilling all the way through both panels, will not be difficult to weld back together, with a good, copper heat-sink, to back up the welds.
Last edited by 4-5-6 Chevy Trucks; 02/09/2011 7:21 AM.
