[Bob Putnam]

Typically, Smiths senders come with an adapter for 3/8" or 1/2" female pipe thread. Your pan should have the same thing. If not, you'll either have to weld a pipe-thread fitting in the pan or find somewhere else to put it. If a tapered-thread adapter (pipe thread) didn't come with your gages, I suggest you contact whoever sold you the gages.