I got my new coupler today. Its made by Mallory, hope its ok. Looks right . Did'nt realize it was so lightweight. I guess the outer assy is aluminum also. I'm shooting for Friday ta install it. I think I can just hold up on the rear of the motor, unbolt the bellhouseing and get right to it. I've got right much room around the back of the motor.

Yeah, Mallory got in the marine parts business a little while back(my wife works for a parts wholesaler). They look like decent parts, on par with GLM and Sierra. Make sure you set the alignement after you get it back in, grease up the input splines as well. What do the splines on the drive shaft look like? hey should have square tops, not sharp, clean the splines out with a pointed object(get all the old grease out of the splines) adn inspect them before you put it back together

Well, I pulled the outdrive and then the engine friday morning. after looking and comparing the couplings the old coupling wasn't worn as bad as I thought . The splines on the drive shaft looked like new. I found a couple of engine bellhousing bolts loose and the front mount adjustment nuts had worked loose too! After replacing the coupler I borrowed an alignment tool and realigned everything. It seems to have almost entirely eliminated the vibration. I havent taken it out for a good test but it ran pretty smooth on the hose. It took the better part of Friday but I think it will be worth the time and work!!
:sun:

Good Job Brotha! :beer: