Originally posted by menappi
so i cant use the sender that came with the guage?
Not for both the stock and the Autometer guages. You can use it for, and only for, the new gauge.
What size it the sender threaded for? I just installed a mech. temp gauge in my car, I had to drill and tap a spot for in in 1/4" NPT (1/4"x18), but the electro senders might be smaller.
For some reason, those tiny bleeder screws don't sound like a good location to me. Are the electro senders really that small?