[Metalaroundstone]

Originally Posted by 63burban

Most aftermarket sending units are made by the same manufacturer so it's not just one supplier's product but most supplier's sending units will be somewhat inaccurate but they do hold up well. Once you get used to where the gauge runs you will be fine.
I personally have installed three different sending units in my 56 Chevy, they all read the same. When the tank is full it reads just under full, when I have a half tank, it will read one quarter tank and stays there then it will all of a sudden be empty. I just fill it when it gets below one half.
Aftermarket sending unit in my 64 C30 is pretty accurate but I never let it get below one quarter. The same thing on one of my C10s.

Very helpful.
Thanks