gooday to everyone,i hope my first post doesn't cause to much uproar,i presently own a 2006 gmc sierra 3500 lbz duramax with 3.73 ratio, i'm starting to look to upgrade and i'm looking at ram trucks,theres no way i will pay 100,00.00 for a new truck,so used trucks is where i'm looking i don't want to go to old so 2016 up unless someone gives me a good opinion on something older now upgrade is my goal ,im pulling a 38ft fith wheel with a gross weight of aprox. 14,000lbs,do i need to go to the ho or the regular would be ok,my question is there anyone out there that went from a gmc or ford and now ram and they think there ram was an upgrade,i see alot od 4.10 ratios out there but can this truck be fairly decent on gas millage and do i need so low of ratio i have a friend that has a 2005 with 5 speed auto and his rpm on hightway is alot higher than my gmc,i'm not trying to insult anybody but i know this forum should help me to change to a ram thanks for your imputs

