Does anyone know the nut size for the stock downpipe studs? I heard a slight exhaust leak when I was warming up the truck the yesterday so I climbed underneath to take a look and found out I was missing 2 of the three nuts. I can grab a pic tomorrow once its a little lighter out.

Also, can I use loctite on the replacements? Would antiseeze be better? The one on there look pretty rusty. I doubt they'll come off without a fight.

 

M8 x 1.25