I am replacing the seals and bearings on my lower unit and found something not in the parts catalog. I got the driveshaft seal out and there is a washer or something between the seal and the bearing. I don't see getting it out without damaging it and there is no parts no. to replace it. The bearing is gritty and since I bought the bearing I would like to put in the new one. Also are there any tricks to getting the shift bushing out?