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central wisconsin | I traded my 7700 for a 6620 titan II 4 seasons ago. I put about 300 hours a year on the machine. In my opinion it is a big update,the motor is larger the 7700 had a 404 and the 6620 had the 466. the engine power was never a problem even in 4wd. I run a 643 grain head and a 920 bean platform and never had a capacity problem. With the volume that you are running I think a 6620 would fit you fine, the 7720 is a nice machine also, but do you need the capacity. | |
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JD 6620 T2 & 7700 - differences/comparisons
