the. what your using it for is a key partKirk,
According to Deere's website it recommends either for the 1026R. More important, which one do you want? And what are you using it for?
It becomes easy to judge rear attachment side clearance when the attachment hanging out back is smaller than the bucket in clear view out front. Hence my choices for my 2320 were a 53" bucket in front and a 647 tiller and RC2048 cutter. So when tilling or cutting down a fence line or side of a building I truly have very little worry. If the bucket passes, so will whats behind.Going to pick up a 1026 next week. What would be a good tiller to get the 655 or the 647?