Sherman transmission

As others have said, Shermans effect your PTO speed the same proportion as your ground speed. NO good for tilling. The Howard gear reduction IS the way to go AND for about the same price of a good Sherman Combo, I'll sell you a Howard unit with new bearings. That said, your 9N is much too underpowered to run a 6 foot tiller unless you have just plain sandy soil. In THAT case, why not just drag a springtooth with a smoothing bar over it and save yourself a LOT of time, expense, and trouble. My .02 HTH jim

Dean

Now to your question re the 6 ft tiller... Please check the HP requirements for operating such a large tiller. Of course this will vary with your soil type, previous tillage, what has been planted on the soil, soil moisture, and intended depth of tillage. I would expect that a 6 ft tiller would need a 60 HP(or more) tractor to adequately handle it. Remember also that you will need some of your N's 23 HP to move the tractor and tiller forward, besides the HP required just to turn the tiller. And you are getting that 23 HP at almost full throttle, giving you way too much forward speed for tilling.

I'd use a bigger tractor or a smaller tiller.

Paul in MN