Home   Forums   Gallery   Vendors   Advertising   Links
Go Back   DieselRam.com > Diesel Ram Technical Topics > NEW! Technical Info: 4th Gen DRIVETRAIN
NEW! Technical Info: 4th Gen DRIVETRAIN Technical discussion of fourth generation (2007.5 and up) 6.7L engine and drivetrain questions, solutions and upgrades. For trucks with the 5.9L engine use the appropriate 3rd gen forums.
Thread Tools Search this Thread
Old 09-12-2017
BigCranks BigCranks is offline
Join Date: Aug 2016
Posts: 34
Default 3:42 rear axle vs 4:10

Been finding a few '17 3500 with the Alison. Most I have found have 3:42 gears. Looking at the towing charts, ram says about 10,000 lb difference in capacity. How much difference in empty running fuel mileage?
Reply With Quote
Old 09-12-2017
HerkyBird2001 HerkyBird2001 is offline
Super Moderator
Join Date: Mar 2010
Location: Travis AFB CA
Posts: 541

3:42 make maybe a 1 to 2 mpg difference empty. Towing probably no difference. The question is what are you going to do with the truck primarily? If it's towing and hauling 4:10 all day long. If just the occasional light towing and daily driving the 3:42. Also I noticed you said Alison. These transmissions in the ram are aisin transmissions. One of allisons competitors.
--SORRY--2013 GMC Denali HD 3500 Dually, Red, LML Duramax, Allison, 3.73, Banks Intake, Airlift Air Bags, CTS 2 Insight.

--SOLD--2001 3500 SLT SO, 2wd, NV5600

2000 VW TDI (56 MPG)

2012 Keystone Raptor 395LEV
Reply With Quote
Old 09-13-2017
thompwil's Avatar
thompwil thompwil is offline
Senior Member
Join Date: Nov 2004
Location: South Central PA
Posts: 489

Our 2014 3500 DRW with Aisin and 3:42 gears gets 16mpg +/- a few tenths daily driving, sorry I can't help you with the 4:10s. The max trailer weight is rated 20,500lbs on mine. Towing our 16Klb. TH average is 10mpg +/- some change, I have seen 11 on flat road with no wind, and 8.8 in a head wind across South Dakota. The thing does haul like a locomotive pulling hills without a problem usually as fast as I want to go.
2014, 3500 Quad Cab, 4X4, Long bed, Dually, Aisin, Gone but not Forgotten.
2015 Voltage 3305 Toy Hauler, Gone and Good Riddance.
2002 Club Car Villager 4, Looking for a New Home.
3 dogs
2 horses
1 rabbit
1 Excedrin headache
Reply With Quote
Old 09-14-2017
jetfueljockey's Avatar
jetfueljockey jetfueljockey is offline
Senior Member
Join Date: Nov 2006
Location: Isham, TN
Posts: 3,099

Going to look for a 3.73 gear when I upgrade, for what I'm going to do should be a good choice.
'06 2500 Brilliant Black Pearl Thunder Road, QC, 4X4, G56 w/ SBDD, Home Brew in the gearboxes Volant CAI, ATS Arc Flow , Airdog 100, AFE 4" cat back, Smarty JR, Warn lock-outs, drilled and slotted rotors, HBS steering stabilizer, Pacbrake airbags, Bilstiens, RP 15W40 , 2 BIG BALLS (shift knobs) from Geno's, 5th wheel slider, step bars. The next mod is........

'74 Trans Am, someday car.......
'10 Wildwood 356 SRV
'15 Mid-life crisis
'98 Oytota Navalon
Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -6. The time now is 03:02 PM.

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Copyright 2016 www.dieselram.com. All material found on this site is property of DieselRam.com.Ad Management plugin by RedTyger