I think we are all over-thinking this issue. My truck pulls my heavy RV extremely well despite having 3. 42's and in my case, is only one weekend a month. My 12' enclosed trailer is my primary purpose for the new truck and it doesn't even know it is hooked up..... even at 5k lbs. Heck, I'm more concerned with the POS factory Firestone's than anything else. The ring gear is 11. 5" in diameter guys..... why are we really concerned about the rear end at all!! I'm not! It's an entire 1" larger than my previous 2nd Gen. Dana 70 w/3. 55's and 33s... . which is probably real close to the actual final drive ratio of my new truck with the smallish factory tires.
Instead of finding fault with the 3. 42's ... . instead, let's take a look at the obvious advantages. How often do MOST people tow to maximum GCWR? My guess is not many. For those that do, by all means, get the 4. 10 geared 3500 dually and be happy. For me and many others, I feel like I made a wise business decision by choosing a 2500 w/3. 42's. Unloaded mileage seems to be very close to my modded 2nd Gen... . loaded mileage is exactly the same. That is taking into consideration that the Cummins is nowhere near broke in. If I have to take off a little slower about once a month while hooked to my RV, it seems like a worthwhile alternative to buzzing my new 6. 7 to over 2k rpm while cruising down the highway.
Harvey... ... the 2013 is really a well built and well designed rig with plenty of power and torque. I test drove one and had to have it! Go drive one..... I can almost guarantee you will be satisfied.
What if you don't tow, but haul with a 3500 DRW at close to the maximum GVWR?
Bill
If you like everything else about the truck and the 3. 42's are holding you back then buy a DRW or do a gear swap... maybe you say that Ram should just provide the options and to a point I can agree but it is what it is and they didn't change it for the 2014MY...
you can still order 3. 73's and 4. 10's in DRW applications regardless of transmission.
guess Im just saying give me the option to get a 3500 SRW Aisin equipped 4:10 geared truck.
The Powertrain Integration Manager, Jamie Standring, told me that pulling a trailer he would go into tow/haul mode, but might not bother if the truck was solo and loaded to GVWR.
Ram adds the cover with Max Tow meaning the dually with 4. 10. I'll take that bet--I don't think the diffs will fail; just use good lube. If Jamie isn't worried about trans fluid heat from the torque converter helping the load get moving, I expect he has done enough testing to back up his position. Again, I think most buyers of the 3500 SRW won't be at the GCWR most of the time. If you want to be safe, pay the extra and get the Aisin. Then you have "too good" a trans to go with the "too good for a pickup" Cummins. As I looked at USA-wide inventory of SRW 3500s, and even at dually Rams, I was amazed at how many were ordered with expensive gingerbread but not with the Aisin. I have never been disappointed by something that was "too strong" or "too durable" but I have seen problems from getting components that were "improved" and "adequate. "