'22 and Cummins rear axle / ratio ...did FCA move off 3.42?

[jeffjcalweb]

Hi - working on a couple quotes on a '22 2500 4x4 with Granger in Iowa (who has been super responsive and helpful) - using the Ram "build and price" website every thing shows 3.73 as the rear axle, even when making the change from the Hemi to Cummins.

In fact, there is no mention of 3.42 on the Ram build and price website - and the quotes from Granger continue to show 3.73 on the order sheet. Maybe I missed it elsewhere, but did the 3.42 go away?

Thanks!

 

[Bighoof]

Yes. Probably to help boast about the towing capacity being the numbers on the 3.73's are higher.

 

[Brutal_HO]

3.42 went away a few years ago.

3.73 is the only gear choice in Cummins unless you go Max Tow DRW to get to 4.10.

Gasser is available in either.

 

[sstoner911]

Just go 4.10

 

[Brutal_HO]

Just go 4.10

Can't get 4.10 in a Cummins SRW truck.

 

[sstoner911]

Can't get 4.10 in a Cummins SRW truck.

You can select it on a 2500 on the Ram website??

 

[Brutal_HO]

You can select it on a 2500 on the Ram website??

Selection of 4.10 on a diesel config will force it to gas.

On the 3500 it forces to DRW Max Tow.

 

[sstoner911]

Selection of 4.10 on a diesel config will force it to gas.

On the 3500 it forces to DRW Max Tow.

Ok suggestion revised....
Go 4.10 Hemi or DRW

 

[Brutal_HO]

2500 cummins start:

Pick 4.10:

 

[Brutal_HO]

On a 3500, if you choose 4.10 then either Dual or Hemi is forced.

I was wrong about Max Tow, not a requirement that I see but Max Tow selection pushes it to HO and HO 4.10 I believe forces max Tow.

 

[Brewbud]

3.73 is a good all around ratio for a Cummins. My 3rd Gen had 3.73s. I put 37s on both it and my 2020. The tires actually make my ratio similar to 3.42 now. I will probably end up with 4.10s.

 

[Pulling it]

Hi - working on a couple quotes on a '22 2500 4x4 with Granger in Iowa (who has been super responsive and helpful) - using the Ram "build and price" website every thing shows 3.73 as the rear axle, even when making the change from the Hemi to Cummins.

In fact, there is no mention of 3.42 on the Ram build and price website - and the quotes from Granger continue to show 3.73 on the order sheet. Maybe I missed it elsewhere, but did the 3.42 go away?

Thanks!

You won’t like 4.10’s if you run on highway a lot.

 

[Bighoof]

You won’t like 4.10’s if you run on highway a lot.

That depends on where you live. In my area running the 4.10 rear, I can't even hold high gear at 55 mph due to rolling hills without the transmission downshifting. Having a higher ratio just makes it worse. Think I'm at around 1500 RPMs at 55 mph with the 4.10's. That bogs when coming to a hill. A higher ratio puts the RPM's even lower.

 

[loveracing1988]

You won’t like 4.10’s if you run on highway a lot.

Drive a DRW with the stock tire size and 4.10's, you are running 2100ish rpm at 70 mph. My 3.73 and 35's are running about 1600 at 70 mph.

 

[H3LZSN1P3R]

They ditched the 3.42 at the start if the 19s and if you are going with a cummins the 3.73 is the way to go unless you need the max tow for 30k+ towing

 

[sstoner911]

I love the 4.10s.

 

[loveracing1988]

They ditched the 3.42 at the start if the 19s and if you are going with a cummins the 3.73 is the way to go unless you need the max tow for 30k+ towing

Or if you want to tow at 55 in 6th gear...

 

[sstoner911]

Or if you want to tow at 55 in 6th gear...

Why 55? Ian usually at 65 -70 unless Iam passing.

 

[loveracing1988]

Why 55? Ian usually at 65 -70 unless Iam passing.

Idk where you live but not all of our roads have a speed limit of 70. The upper peninsula of Michigan is all 55-65 except for 1 expressway.

 

[H3LZSN1P3R]

Or if you want to tow at 55 in 6th gear...

Staying in 5th is the same thing as having 4.10s so why does that matter We have lots of 50-55mph limit highways here