Summary: the holes with a 3 16 bit then you can separate the pieces Finish the flange by trimming and sanding the flange edge smooth Rivet the nut plates in place on the inside of the wheel skirt Create a hard point for each of the two holes on the inside skirt mounting plate with a quarter and 2bid glass Drill out the hole after cured Rivet nut plates on the inside of the 1 8 x 1
Image Dimensions: 800 x 600
Image originally found here.