Today we drove the NAS bolts for the wings of out 8A. Use beolube and a brass tipped Rivet Set # 12-01543 ECON BRASS RIVET SET from Aircraft Spruce. All 16 bolts in - 30 minutes or less. Now the problem. I drove the big bolts on the bottom the whole way in with the rivet gun. There is not now enough room to get the nut on the bolt as the landing gear weldment is in the way. Cant get any room to drive the bolt back out about an inch or so to make room for the washer and nut. I'm sure I'm not the first. Any thoughts on how to back the bolt out enough to get the washer and nut on?