They are out there!
We found a new body style Ram Bighorn Crew Cab 4x4 in stock with 3.92 axles, 5.7L V-8, class 4 hitch, integrated brake controller, flip up towing mirrors, etc. The price for all this equipment is insignificant. The 3.92 gearing is an amazing towing improvement over the 3.21 axles in our previous truck. If your choice is to replace, keep looking until you find the right axle ratios.
The truck retailed for $49K and we paid $37K PLUS TAX on the $14.5K difference in value between this truck and our trade in.
One surprise was the empty (non towing) MPG, with the 3.92 gears it stays in 4 cylinder mode much longer. When I am running the backroads at around 65 mph for a 75 mile trip I regularly make, the VIC will climb up to 26-27 mpg and the fuel needle barely moves. I have not hand calculated it but it's impressive.
Good luck with whatever you choose.
