When I bought my 74 Grand Am, the gas gauge didn't work. Long story short, BOTH my gauge and sending units were bad. The sending unit they sell is for all A body, which is a problem because Lemans models have a 22 gallon tank and the Grand Am is 25 gallon. The GA tank is deeper and the A body unit didn't extend to the bottom of the tank. That meant I would run out of gas with 3 gallons still in the bottom of the tank. I sent the original unit off to be rebuilt, which is always an alternative.
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