The 19 speed power shift in the early JD 7800s was a hard shifting transmission. Nothing like the JD 4450 15 speed PS. I personally like the power quad transmission. You have four power shift gears in each range. Plus the range shifter is synchronized. On the JD 7810 you could get the 20 speed quad range. So therefore you had the faster transport speeds. The original 16 PQ transmission only had a 18 mph top speed. The 19 speed PS had a top speed of 25 mph. I own three power quad transmission tractors. I have owned a 19 sp JD 7800 I only kept it three years. I disliked the shift on it. On certain shifts it would realy jerk when cold. It was some better warmed up but not much.
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Today's Featured Article - Fire in the Field A hay fire is no laughing matter-well, maybe one was! And a good life-lesson, too. Following World War II many farm boys returned home both older and wiser. One such man was my employer the summer I was sixteen. He was a farmer by birth and a farmer by choice, and like many returning soldiers, he was our silent hero: without medals or decorations, but with a certain ability to survive. It was on his farm that I learned to use the combination hand clutch and brake on a John D
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