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Seems like that the ring to lock the motor tranny in high or low (after a quick disassembly and measuring session) should be roughly 1.520" OD, x 1.300" ID x 0.228" thick. You'll need to bore out part of it to clear the gear tooth molded into the inside of the stage 2 body.
I do not see a easy way to take out the clutch shell Last year's drill motor design the clutch can be locked out by removing the double-stack ball bearings and replacing with M6 set screws; however if you put the clutch into drill mode, 2 pieces of metal rises up out of the plastic shell to positively lock the clutch ring from slipping. All in all, this is one *MEAN* gearbox.
I love to engineer bigger and better toys, but aside from a lock-out ring, I don't know how much modding I am willing to try on this gearbox. Well, I also dont' want to break it, seeing how it's so new, replacements would be difficult to come by.
Anyone know what screw pitch the shaft is at? I don't have a set of thread gages handy.
-=- Terence
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