Hi guys,What is the best manufacturer of a replacement hub? I really don't want a Mercruiser again if it just last 6 years or so. I have a 1990 4.3L Alpha 1 with 560 hours.While I haven't actually pulled the covers off yet, I'm pretty sure I spun an engine coupler this weekend. It has occured before and I have a solid prop (Land-n-Sea Torque Shifter), so I know it is not a spun prop hub. And - no - I did not align my engine every year. I believe I most likely will have to now. It could be a weak floor or transom as a source, I just don't know. Finally, I've had a "roar" that is engine speed related that started last year. It's actually quite loud. I pulled the top gear cover and those seem fine. The dealer though it was a water pump, but he checked that out and it was OK. What is your guess - drive shaft U-Joints, Coupler, Input shaft bearings?