Originally Posted by Trail Whale
I'd love to have the 2014's 11.5" rear axle in my 2012! (but with my leaves, not the coils) With the 2013 and earlier 10.5" rear, the lowest gearset you can go with is 4.56 versus with the 11.5" you can go with 5.13 gears! If ever go with larger than 37" tires, I will find an 11.5" out of a leafsprung (2013 and earlier Diesel) truck and swap 5.13 gears and a 2014+ Power Wagon's locker into it! (that way I get to retain my stock locker wiring and I get the stock combo of a limited slip when unlocked and locker!!!)
With the added power (especially it coming on stronger at low rpms) of the 6.4L, I really don't think the 4.10s will be much if any of a penalty (I actually think it will be better!) compared to a 5.7L with 4.56 gears. If they keep the 4.56s, so much the better!!!
Whoever told you the lowest the 10.5 can go with is 4.56 was smoking crack. Sure you have to shop around, but the 10.5 can do 5.13 all day.