fuel gauge folly

Mike69cuda said

This idea doesn’t really make much sense. The IVR is located IN the fuel gauge. It would be difficult and pointless to try and isolate it. Why would you completely disassemble the dash and go to the work of isolating a 50 year old mechanical regulator that is known to fail?

Makes much more sense to replace the ivr. The meter match with the built in regulator is a cool thing, but likely designed for when you are not using the other stock gauges.

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Not all of them have the voltage regulator built into the fuel gauge. In fact, most of them do not. Meter match is running a standard 7805 regulator and wont power more than one gauge. So, you need another regulator if you want to use the oem temp gauge.
Have you even installed a meter match before? What I said is not "difficult and pointless", in order to use the meter match it runs off its own regulator.
I dont use 50 year old regulators, I install my own additional 7805 on a heatsink along with the meter match. Much safer than risking the bi-metal type and having the contacts stick closed and frying the gauges. Although in 30 years of owning mopars I have only had them go open, I know its a possibility for them to hang closed.