The other guys are right, has really nothing to do with tranny or rear end weakness. Around here, the lightest "classic" tractor pulling class is 3,500#'s. What's the curb weight on a N... ~2300#'s or so? Can you imagine chunking ~1200#'s weight onto your N to maximize your traction? The Ferguson 3 point lift system on your N was intended to transfer weight to the rear axle from the draft of the plow, to improve traction, so your tractor could be made lighter & cheaper. It works great for plows, but don't work for pulling a sled at the county fair grounds. I watched a pull a couple years back where one of the pullers used a nicely restored Ford 8..something, 851 I think. It faired very poorly against the row cropper tractors (AC's, JD's IH's, etc) in it's class... Now, if we had a ~2,500# weight class, for N's, Fergys, Farmall A's & C's maybe, etc. ....I would be first in line for that pull. George
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