Thanks for the links - this certainly confirms waht I had concluded.
Just curious - what didn't work on the dual-contact sender?
I got the dual contact sender in and went to install it and the threads were entirely different. Around this time I also got a new impeller in that was wrong too. Between these problems I finally figured out that I had a freshwater conversion of the 2GM and not a 2GMF.
It's possible that a dual contact sender is available with the right threads (3/8" 19) but I have not been able to find one. I finally took the path of least resistance and went the spliced-hose route, but this now seems all but worthless.
I found a thread where people talked of re-tapping the port so that a 3/8-18 sender would fit - but I'm not willing to go that far!
-dan
