Key differences between C336 & C337

[paul45c]

I know, total newb question. But could someone educate me on the most important differences between the 336 and 337 other than the gear? I've read here so far that the wing's angle of incidence is different, such that the 336 rides nose-high (er). And the 336 lacks the larger dual rear cowl flaps and has a smaller, lower air inlet scoop over the rear cowling; they apparently run hotter.

It looks from pictures that the belly is a rounder shape on the 336, too.

Anything else significant?

-- Paul