the 469-479-488-492 were the same design, with updates. the rolls and cutterbar/reel were all 1 unit. the 489 had the rolls mounted rigid to the frame, so only the cutterbar/reel floated. the 489 was the cadillac of design when it was new, but that was 30 years of wear ago. the 489 can have gearbox issues, but i would think that most have been repaired by now if they are still running. i have had a 469, 479, 488. if the lift springs are adjusted correctly, they will float very well. there are less parts to maintain on them, vs a 489. i finally broke down and bought discbines, mostly for the fine grass that comes in the bottom of a seeding from heavy manure applications. check the wobble joint for wear. they are fairly simple to repair (just regular roller bearings). hth.
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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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