Am looking for opinion/advice on choosing an adequate rear axle gear ratio. Will be pulling a Cruiser RV Fun Finder 214 (approaximately 5000 lbs. loaded) with a Ford F-150 Ecoboost (yet to be purchas...
I think if you get the trailer tow package (good idea), with the towing mirrors, trailer ready wiring, and integrated brake control, it will come with 3.73 gearing.
I think 3.73 would be a good choice, and work great with the 6-speed transmission.