I am looking into purchasing a 1965 Fleetwood. I am in need of an muffler. My girlfriends brother needs to know the diameter of the tailpipe entering and exiting the muffler inorder to get me a muffler. It would also be helpful to know exactly where the tailpipe enters and exits the muffler.

Any help would greatly be appreciated. I am looking forward to getting this baby home to enjoy driving it...