Dave, I am confused, are you saying you are pulling with a 6.0L gas engine? In your sig I see D/A and read that as Duramax/Allison?
I did not know know GM, Ford or Ram offered a gas engine in a 350/3500 series truck. After looking I see all offer a gas 350/3500 vehicle. My bad.
Jim
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2012 Ram Laramie 3500 DRW 4x4 3.73 Tow Max Pkg B&W Companion 60 gal RDS aux fuel tank. 2014 Montana 3150RL, 2 A/C's, Leather, 6 Point Jacks, Splendede WD2100XC, Mor/ryde X-Factor, Duravis 250 tires with TST 507RV monitors. 2 x Honda EU2000's