Late Model Gearstar Transmission Upgrade
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18 After a couple of weeks driving the car, we’re impressed with Gearstar’s improvements to the NAG1 automatic. The transmission shifts firmly, but not violently, and the heavy car responds nicely to the looser stall converter and modifications. Be sure to follow this project in future issues of Mopar Muscle as we further modify our Challenger and take it to the track for testing. mm View Related Article
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