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Joe is correct. We have used the FP gearbox for the last 3 years. The last gear was breaking teeth, and, amazingly, it was on the gear and not the pinion. We gave up trying to figure out why it was failing and made an aluminum ring gear and bolted it onto a turned down FP gear. By taking out the gobs of grease that comes it the FP case, there is no increase in weight. Since making the mod, we have not had a failure. We make an aluminum hub that fits the FP output and connects to the wheel spokes. This setup seems to be a reasonably efficient and easy to do drive. If there is any interest out there, we will post the detail drawing of the gear which can be made from a stock gear on a lathe.
Don't know if it will do the job this year though............
Bill Beatty
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