This mailbox lock is installed backwards. I figured I either need to flip the lock over or flip the tailpiece.
I can pry out the "U"-shaped retaining flange to loosen the lock, but I can't get the lock out with the tailpiece still on. All the videos I found online for mailbox locks show tailpieces that are held in place with a hex locknut - this obviously does not have one (see photo). Any ideas on how to remove the tailpiece?