I almost hate to ask this but I guess I just never paid enough attention. I replaced my impeller and want to make sure I have not missed something. My lower unit shifts into forward exactly where it is supposed to. Back to neutral just like it is supposed to and into reverse properly it would seem. However when I try to spin th prop in reverse wi will not turn in either direction(does not ratchet)like it does in forward. It seems to be catching on the dogs in both directions. I thought they would ratchet in either gear. It freewheels properly in neutral and ratchets in forward. I even removed it and shifted with a pair of pliers. Have I missed something or is it okay.