There is alot of stuff in the archives of this forum that can take you step by step. Thats how I did it. Trying to use MADS instructions will make you want to end your life.
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Early 04 3500 drw quad cab-6speed SBC fast coolers - 4x4 -S&B -fass 150-expandit 5"- FTE resonator -SMARTY-autometer C2 full pillar gauges- di-pricol rpg-Dragonslayer cp3-64/71/14-PDI manifold -Wicked 125's - $2 rail cap.