Hi, everyone new to Heartland rvs old to 5ver and tag. I currently have a 2005 F350 Kings Ranch CC LB DRW 6.0 Diesel 4.10 automatic, towing guide allows me to tow 16,100 lbs, same truck with 4.30 gears will allow to tow 18,600 lbs. Check www.ford.com site for towing or www.trailerlife.com all...