Turbo diesel engine sizing?
I presently own a 4000 pound 18 foot RV and pull it with a gasoline fueled, normally aspirated, truck rated to pull a 6000 pound trailer. However, when towing at 10,000 feet altitude, up a mountain, t...
Forum Discussion
Redsky wrote:
Going with the 3.42 gears will be a big mistake. Get the 3.73 gears and the engine will be better able to operate at its peak torque portion of the power band. No sense in getting a diesel engine and then handicapping it for towing with tall gears.
Check the towing specs for the truck with the different gear ratios. 3.73 provide a 25% increase over 3.42 gears for the same truck with the same engine. When towing the taller gears are more likely to hurt than help fuel economy.
All you can get without dual rear wheels is 3.42 in the new diesel Rams (2014+). If you get the Hemi, you get a choice of 3.73 or 4.10.
A 2500 Ram/Cummins 3.42 is rated for over 17,000# max trailer.
