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I have a 1972 Plymouth Duster 340 and the rear end seems to sit high. The previous owner installed MOPAR Super Stock Springs 2800 pound Summit 4120683/4 springs on the car. Does anyone know the baseline ride height measurements and where to take these measurements so that I can compare my...

I was detailing some items on my vehicle and noticed that both rear springs where part number P4120863. The Driver side is oriented with the 'partial 'helper spring' pointing to the rear of the vehicle and the Passenger side has the 'helper' pointing forward. Doing some research on this part...