hey just wanted to no if I can use a ef falcon thermo fan sensor for thermo fan conversion on an eb falcon and im guessing its the big sensor in the thermostat housing

I may be wrong but the thermo fans are actually controlled by the ecu in the ef's I think and that runs off the temp sensor.
I may be wrong but I think thats the case

ok if that's the case il just go and get a tridon tfs148 for the fans

I was going to go thermo's on my Nc Fairlane 5L and I was looking at switching it myself too. You can run it off a hand switch, but if your not looking on a hot day or lend your car to someone who dont know it could be bad.
The switches I was looking at were adjustable too ( very handy) but I dont remember too much about names of products seeing it was about 3 years ago.

ok thanks for that I used the tridon tfs148 on my old ed falcon and never had a problem with so I might just do that again