Lionel 700E Hudson Driver Dimensions?

Sure.  You asked the wrong question, though.  The drivers are 80", but it is the axle spacing that you need.  I will get it from my 763 now, and if I think about it, I will check the MTH tomorrow at the airport.

This is a rough measurement - I get 3 19/32" wheelbase, or 1 51/64 between holes on the side rod.  That is, of course, the earlier Hudson, but there is no reason to assume that all model Hudsons do not use the same frame.

NYC J3 class Hudsons had 79" diameter drive wheels.

Thanks for the info Bob. My question stems more from the fact that the American Lionel Hudsons seem to be a bit bigger than the K-Line, and since the Vision Hudson appears to have K-Line drivers, it comes down to a comparison between the two as they could possibly be different regardless of prototype. I have a K-Line Hudson and know there's a caliper floating around in the shop somewhere, will have to track it down.

From other post:

PC9850 I have come across a set of the main rods for the Lionel Scale Dreyfus Hudson I have and have compared them to the extra main side rods I have fore the 700E/773 and the three holes do not line up. Sorry to be the bearer of bad news. If you center the middle hole at the eccentric crank the centers of the outside holes are approxiamently 1/16" at each side.