David Loberg Northeast Nebraska | We ran our John Blue piston pumps off our meter shafts on a 1770. I wouldn't recommend it. To apply 8 gal/acre had to put such a large drive sprocket and such a small driven it would bind up the meter shaft, causing skips or stop planting completely. Went to a ground drive kit out of Schabens...works much better and still cheaper than Deere |