Howdy Winger! 2500, 3500, who cares as long as it's the 6.7L Cummins. When I got mine I could have gotten the same truck with the 5.9L but I wanted to do the right thing for the enviorment and after 12,000 miles I'm convinced I made the right decision.

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2007.5 Dodge Ram 3500 HD,QC, 6.7L Cummins, 6speed Auto, 4X4, Bighorn Edition.
Click for installs: Carr Steps PML Diff Cover Edge Juice with Attitude Volant Intake Hankook ATM RF10