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**burb71** · 11-23-2019, 10:35 PM

I pulled a gauge cluster from a medium duty truck, and one of the red warning lights a the bottom of the fuel gauge says (tandem lock) when you start the truck.
So use a fuel gauge from a light duty truck.

11-23-2019, 10:35 PM	#8
burb71 Active Member Join Date: Oct 2002 Location: Ft. Myers, Fl Posts: 1,711	Re: Explain this please... I pulled a gauge cluster from a medium duty truck, and one of the red warning lights a the bottom of the fuel gauge says (tandem lock) when you start the truck. So use a fuel gauge from a light duty truck.