Where did that come from John????? Maybe I'm not understanding
the question, but.....about half the 3100's and almost all of
the 3600's that I've run across have an SM420 four speed.
And the 3100's had 4.10 gears and the 3600's had 4.57 gears.
Denny Graham
Somewhere north of Sandwich, IL
Well I agree because I've only seen 2 3100's with the three speed. The four speed is way more common in this neck of the woods. 20yrs ago I could of bought an original 1952 3speed 3100 for $2500, the truck had been in that family since new & looked like it came off the show room floor(minus a few dings).I kick myself for not buying that truck. It's still in the area but only see it once or twice a year.
