The true pin weight is based on what a truck weighs without a trailer attached, and what it weights with the trailer attached. Perfect world front axle remains the same weight. Have seen as much as a 400lb swing in front axles loaded or unloaded. Some people believe that it is only a rear axle thing, but that is inaccurate.
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2013 Tiffin Allegro 34 QFA
2015 Cadillac SRX (towed)
2019 Tesla Model X
1991 Avanti Conv
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