Combines 8780 9790 shaker arm

Ours went out during milo. It just sheared the woodruff key. Didn't really mess up anything, but it sure made for a hot itchy job to clean it out. We put a new key in it and kept on running and its still in there with no more troubles. But its going to the shop for some warrenty work soon, so it'll get the new shaft and arm.

there is a series of updates for some models-9690and9790.the arm is to be drilled and a 5_8 bolt used to clamp it.after drilling the arm hole to 0.656in.check the wall thickness.if less than 0.200in. then replace the arm.check with your dealer.