I got the 93 spec sender today, checked it and it read 2K ohms, hmm, ok. Installed it, filled with coolant and it looks to be good. Gauge came up pretty quick and read in the normal zone after it got to operating temp. So I'm done futzing with it, I've done more electrical getting everything working on this truck than ever wanted to do in my life If I would have stuck to the original plan of installing the complete fuel injected engine and fuel tank I would probably be done with it already.