Yeah, just remove that screw from the shaft retaining collar (the silver thing) and the whole thing slides off the top of the outer shaft.

Pull the outer shaft down through the bottom of the body, be careful not to lose the bearings.

Check to see if it's true. (Hint - if you have a hard time getting it out of the bearings, it's probably not true.)

Buy a new one, and lube it just a LITTLE bit, like a thin film, with some sort of machine oil from your LHS and you should be good to go! Also, I'm pretty sure my lower rotors spin first also, will have to check on that.

Bryan