4:10 or 3:73 ?
Possible upgrading to Ram dually. I'm pulling 12,500# gvw with SRW and 3.42 rear end. Usually lock 6th gear out. Plan is to move up to new 15,000# gvw 5th. Not sure if I want to get 4.10 or 3:73. Wh...
Forum Discussion
bluegrass smokers wrote:
OK someone help me out here and let me know if this is the correct line of thinking. With a 4.10 I can tow easier but driving unloaded the truck will work harder at high speeds and with the 3.55 it works harder towing but easier at unloaded highway speeds? Basically right? My fifth wheel is about 16500lbs.
I am looking at 2 2017 Ford DRW F350s. Both trucks are close on equipment but the rear ends are different. I am trying to figure this out. And the truck will have to be my daily driver along with family trips without the fifth wheel.
If we use the Cummins with the Aisin transmission when going about 60 mph.
Rpm with 3.42 in 5th gear 1712
Rpm with 4.1 in 6th gear 1680
If anything the Ram will do better with the 3.42
16500lbs will be nothing with all three of the current diesel pick-ups with any of the available rear gears.
