I am looking at a 2013 JD3720 and a 2014 JD3046R. Great price on 3720 and I can get it tomorrow. 3046R not ready for delivery for month or two and more expensive Big difference apparently is emission controls. Apparently significant improvement on 2014 model with Tier IV certification. Both tractors have cabs. How big a deal is the better emission controls? I am a little sensitive to exhaust and prefer clearer all things considered. but how big a deal? is one good and the other great? very good vs. great? help please.
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