Fuel gauges with 3 contact/mounting posts have the voltage liniter built inside. All other typical gauges have only 2 posts. Early a-body panels and the rallye panel found in 67 through 71 second generation A-body have 3 post gauges.
I'm guessing since I don't have a rallye gauge on my 69 that I have a separate regulator. I've been able to poke my head under the dash and noticed a wire attached to the gas gauge going to a cylinder that I'm assuming is the regulator. However, the regulator I purchased is rectangular. Could this just be the new shape of the regulator?
