I searched and didn't find a fb thread for Mista Bone...not sure how that is possible, I know a half dozen people he has sold spare parts or transmissions to.
I've picked up several replacement transmission parts from Mista Bone in the past and most recently a great condition d-series reverse idler and slider gear. Let me tell you how I got my parts... very very reasonable price, shipped quickly via USPS Priority mail, double bubble wrapped, and in great condition. Mista also when ahead and deburred the gears for me!
Top notch seller and a true resource. Thank you.