I have a 60 size dynoflite mustang that i built in 1991 and it has over 16 gallons of fuel thrue it and it has this set-up and is still tite.I would drill hole,ca,redrill hole slightly oversize on one side to give me a little play so i can get both sides perfectly paralell to each other,test fit then glue with epoxy(ram epoxy down hole with toothpick)Just make sure before the epoxy hardens they are perfect to each other.