2015 3500 Ram
Hi all have a friend looking at a 2015 3500 Ram Dually,He has a Cedar Creek Fiver 16,000lbs,the the is a diesel but only has a 3:42 rear ends in it,is that enough ratio for a 16000 lb trailer,or shoul...
Forum Discussion
boshog wrote:donn0128 wrote:
Love my 4.10 rear end. Personally I would not get any less than a 3.72, but you have to understand ratios, torque, and load handling further to see my point. The 3.42 will work, but he might be towing in 5th when I tow easily in 6thOD.
The gear you are in when towing isn't important, what is important is the engine RPM, you want to be in the engine's powerband. If you are running a Cummins you can download their Powerspec software which will tell you the optimal engine RPMs. For my 3500 SRW Cummins 3:42, the optimal powerband when towing my 15,000 pound fiver is 1,600 to 1,800 RPMs. This equates to fifth gear when running 50 to 60 MPH.
YEP......
My 5.9L with 48RE and 4:10 tows my 14K 5vr in 4th (OD) at 1850 RPM (62 mph) 11.5 mpg
