I would say as far as the mechanicing on the machines, I like the 9770 the best. Has all the heavier, updated version of parts that were improved from the 50s and 60s. Is easy to maneuver around. Has a lot better electronics than the previous models. Don't know why but the diagnostic flow charts for hydraulics and electrics are easier to follow. Almost like Deere spent a little more time on this model than the last two.
It has been discussed and discussed that the 9000 and 9010 series were extremely reliable. It's a different age with different quality and workmanship. Can we really compare?
As for fires!!! 70 series burn down. It's what they do. There's been law suits about this. Do some research about it. It doesn't happen to all, and mostly in sunflowers and soybeans. But I've seen several in corn and wheat too.
All I know is I still work on a few 8820s. I'm scared what these electronics will be like at 20+ years old. I'm afraid Deere will just stop the support for any updates and payload downloads.
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