If you plan on driving hilly territory you might want to reconsider the 3.55 with the 216. The 3.73 is about perfect for all around driveability with the 216. With 600x16 tires and the 3.73 you'll be a tick over 3000 rpm @ 65. A good 216 will take that all day.

Save a life, adopt a senior shelter pet.
The three main causes of blindness: Cataracts, Politics, Religion.
Name your dog Naked so you can walk Naked in the park.