A 822 or 824 with the correct adapter bundle, a 880 or a 890 auger base with the 3 row-crop unit. The 880 heads worked very well but have hundreds of parts to rebuild and used the 479 Haybine wobble box for the knives. Best to find a 822 or 824. The 822 has less moving parts compared to the 824. The 824 work a bit better but not alot. Both use the rotary disk knives. The key for good performance on both the latter heads is the interference fit between the disks. The 770 head was probably the worst machine NH ever built.....Ron
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Today's Featured Article - Listening to Your Tractor - by Curtis Von Fange. Years ago there was a TV show about a talking car. Unless you are from another planet, physically or otherwise, I don’t think our internal combustion buddies will talk and tell us their problems. But, on the other hand, there is a secret language that our mechanical companions readily do speak. It is an interesting form of communication that involves all the senses of the listener. In this series we are going to investigate and learn the basic rudimentary skills of understanding this lingo.
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