2015 Dodge 2500 6.7L diesel 6spd Auto 8ft bed

Unless something has changed with GM, every Chevy I owned that had the Duramax, came with 3:73 gearing, 2 were 2500's, 2 were 3500 Dually's....The 8.1/Allison I owned waaaay back came with 4:10.

Don't know why Ram won't offer other gearing...don't see what the big deal would be. Sorta stupid to just go with 3:42 on 2500's and 3500 SRW trucks with auto tranny's....just doesn't make much sense.

NC Hauler wrote:

Water-Bug wrote:
I'd go with a 3.73 rear end. It puts the Cummins at it's sweet spot at about 60 mph. Guess the 3.42 would put the sweet spot at about 65 mph. All depends on your driving habits and how often you tow. 3.73s would down shift a little less often.

If you purchase a 2500 or a 3500 SRW Ram truck, you're only offered one gearing , (yeah, stupid I know), and that's the 3:42.....

Yeah why do they not offer different ratio's. I think GM does the same thing in their DRW trucks, 3.73 only.

Water-Bug wrote:
I'd go with a 3.73 rear end. It puts the Cummins at it's sweet spot at about 60 mph. Guess the 3.42 would put the sweet spot at about 65 mph. All depends on your driving habits and how often you tow. 3.73s would down shift a little less often.

If you purchase a 2500 or a 3500 SRW Ram truck, you're only offered one gearing , (yeah, stupid I know), and that's the 3:42.....

I'd go with a 3.73 rear end. It puts the Cummins at it's sweet spot at about 60 mph. Guess the 3.42 would put the sweet spot at about 65 mph. All depends on your driving habits and how often you tow. 3.73s would down shift a little less often.

I have the same truck , getting 17 , 18 stop and go traffic , 21 on cruise control at 65 MPH . Toting my trailer at 65 I get 14 and 15 .. Speed is the killer . Driving at 75 makes the price of fuel go up 20 percent .

I have the 3500 SRW with 3.42 and averaging 18.07 with my first three fill ups using it as my daily driver. Those numbers include towing about 40 test miles with it. I will say it is a towing beast.

As someone else mentioned, get the 3500 over the 2500. The cost is around $600 more and you gain almost 2000 lbs. of payload. The 2500 is limited by the 10,000 GVWR and adding diesel, long box, hitch, people, and cargo all subtract from that. So the brochure payload weight will actually be a lot less once you load it up.

I have the truck in my sig and have been getting 14.5 around town and close to 19 on the hiway at 65mph. It's bigger and geared lower than your 2500 so you should do better.

I have a 2014 4x4 short box (live in the city and it is my daily driver too) with almost 14K miles. Heavy traffic it gets about 14.5 to 15.5, empty highway 20 if I keep it under 70, and loaded with the trailer 9.5 to 13. Speed makes a huge difference with the trailer, if I can stay on the smaller roads in the 62 to 65 range it will get 13, but bump it up to 75 and it goes to hell. The truck is comfortable, nothing has gone wrong, and we are happy with it. Only thing I would do different would be to buy a megacab next time for the inside storage space. If the infotainment system is important to you, Ram has the others beaten by a mile. Ford's is Microsoft that they are replacing next year because of complaints and warranty claims, GM's feels crude and designed by a six year old, and Ram's is very nice. I have done a lot of UI design in the past, and Ram nailed this one.

I just bought a short box version 4x4. Only have 1300 miles on it so no real good mpg but it looks to be 20 or better unloaded on the road and our one camping trip towing our 8500 lb camper it was in the 15 range. This is per the dash read out not hand calculated. It needs more miles to really get a feel. It's dang comfy and has plenty of power though! ( it does have the 3:42 rear end also )

I have a 2013 Ram Longhorn Laramie Limited Edition and love my truck. I live in the mountains so my mileage may be different than others. On the open highway, running empty, keeping it under 75 MPH 20-21 MPG. Over 75 18-19 MPG. Towing my Toyhauler fully loaded, around 10,000#, on a trip to Quartzsite, Yuma and back up to Northern California, 10.0-10.5. Running around mountains and city driving 17-18 MPG, it drops from there if you are enjoying all the power that it offers. :) There are two different transmissions, best to research the difference before buying. Again, I am very happy with my truck. The seating and cab is more comfortable than my living room, even for long periods of travel. If I was going to buy again, I would be looking for the "Asain" (sp?)Transmission, but only because of it's reputation, not because I dislike what I have.

With almost 50,000 miles on it, the truck has not been flawless, I have had the Cruise Control Button replaced twice and I can foresee another in the future. All other issues have been very minor. JH