I would think/hope that if the previous owners bought the unit new they would still have all the books/mauals for the unit. They wil provide you with lots of info.
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2007 38Rl3 MS
2005 Chevy 3500 4x4 5" Exhaust, Edge Attitude Tuner, Airaid Intake, Air Bags, Rancho Shocks, Hellwig Big Wig Sway Bar
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