F450 vs Ram 3500 DRW tow vehicle

^^^So we agree 4.30 gears are not the best gears for an RVer in a new Ford. Before you pick the 4.10 gears over 3.55 you need to reflect on the fact that the 2020 has a 10 speed transmission. Occasionally there may be times when 3.55 gears put the truck at too low of rpm in high gear for a heavy load so with 3.55 gears you have the option to lock out 10th gear, or 9 and 10. With 3.55 gears towing at 65 mph gives you the option of 1560 rpm in 10th or 1690 in 9th or if you're bucking a very strong head wind you can lock out 9 and 10 and run at 2090 rpm in 8th. When you've got 10 gears why not use them? Hit some hills and the higher power goes straight through the transmission in 7th with very little power loss.