Mkos1980
Chief Petty Officer
- Joined
- Oct 25, 2007
- Messages
- 640
I am replacing the U joints on my 90 Alpha. It has a serial number of OD??????? meaning I need the newer ones vs the older ones from looking at iboats exploded view. In looking at the parts online, I notice that my current U joints have a diamond shaped indent by the greese fittings, the same as the older part number. I'm just wondering if somebody used the older design u joints awhile back. Are they even interchangable? Mine look like sierra 18-2104 but the serial number says it should be 18-2174