Tiny, that is a design flaw in the after-market housings. I pointed it out to Jim Carter when I got mine, but don't know if it has been fixed yet or not.
1953 Chevrolet 3600 Fried Green T'mater (Vern) In the Stovebolt Gallery Caution: Political Statement Man who runs in front of car gets tired, man who runs behind car gets exhausted.