I can't help you with the tapping noise, but you sure have a nice truck! I really like the nerf bars you installed. If I got some I am not sure if they would fit my longbox dually though. I want one with the third step to help me reach into the box.
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2008 Ram 3500 Laramie Quad Cab 4x4 LB DRW 6.7 CTD 6Auto 3.73 LSD
EJA, EPP, MAG, CAI, EGR, RWX
Parts keep falling off my truck...The latest in Blacktec technology added
