I was looking for a 3600 just because they are different, and was lucky enough to find one. the 3600 is about 500lbs heavier , has heavier springs and rides a little stiffer than the 3100, and also because of the 4.56 it rides and runs more like a heavier truck, the 4 speed includes a low granny gear and folks have told me it will pull stumps and even plows. the 3600 is also harder to find and therefore more unique. the longer bed (about 10 inches longer) gives it a different look. its kind of like having a big bolt but not as hard to find parts. I have just completed the mechanical restoration and really had no problem getting parts or fixing it with all the good advice we get here!
obviously i am biased and to each his own but if you get a chance to rebuild a 3600 you won't be sorry. By the way denny, thanks for the info on fixing the tranny ball joint leak.
