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I live in hilly clay area of southern Minnesota. I have a 140 hp tractor that I use to pull a 4-18 plow. A little extra power, but there are times a 5-18 would stop me - I do some alfalfa, & very wet soil with compacted areas.... Used to pull a 4-16 with an 85 hp tractor. That was aload on it tho, took the guts out of that tractor. Very hard on it. My uncle had a 1600 or a 1650 Ollie gas - don't remember which. Most he could put on it was a 4-14, and that made it snort. He had a 4-16 plow as well, but not for that tractor. I understand many people have different soils than I, and can move up a bottom. Just telling you how it is 'here'. :) If you get a semi-mounted plow, the plow should transfer weight to the tractor & you do not need to add any fluid or weights. Your worn tires will be an issue if you try to get the biggest baddest plow possible on your tractor tho..... You could spin out, lose traction. As to the disk, I would look for a 18-20' disk with fold-up wings making it 12' or so when folded. In fall you can use the full width to disk down the cornstalks; or use it folded up as extra weight to actually penetrate the hard soil & cut the stalks. In spring you can use it folded up when the going is difficult, or full width in good conditions. More flexability. A disk can be a real beast to try to pull, or it can be a toy the tractor doesn't even know is there when the ground is dry, level, and stable. A folding wing model will give you both options. Tho there is certainly nothing wrong with the size disk you are looking at, will be good. For a plow, Oliver made good low-power bottoms early on, and many other companies got their plow parts from Ollie & painted & labeled it as 'theirs'. For dealing with corntalks, you want a plow with high clearance & a lot of distance between bottoms for the trash to flow through. I try to plow my cornstalks without chopping or disking them. Takes an Ollie/White x8x or better, an IHC 720, or some similar modern model to handle that at all. --->Paul
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