umbertob
Full Access Member
Those pendulum weights are there to reduce resonance (they counteract resonate frequency vibrations coming off the frame of the truck.) They are dead weights alright - on an already morbidly obese vehicle - but you should leave them where they are to minimize stress that could weaken the frame over time. In fact, every now and then you should make sure they swing freely, as sometimes mud can cake up around them and prevent them from doing their job. http://en.wikipedia.org/wiki/Tuned_mass_damper
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