well what i ended up doing was go ahead and drilled 3/8 holes put bolts through them then tightened nuts down and welded them to the backside.pretty much the direction cletis was going.just didnt feel good about just tapping 3/16.thanks guys........dave


1949 Chevrolet 3100

"When this thing hits 88 miles an hour, you're going to see some serious sh%t." -Doc Brown