Considering Gears for 37's-- help if your geared or deleted - Dodge Cummins Diesel Forum
2013-2018 General Discussion General Chit Chat About the 2013 model year differences 6.7L 4th generation Cummins - NO ADVERTISING - Sponsored by: StarLite Diesel

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post #1 of 29 (permalink) Old 12-05-2019, 11:54 PM Thread Starter
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Considering Gears for 37's-- help if your geared or deleted

Sig truck, Stock 3.42 gears. Truck drives fine. Im not all that impressed with the 2-3/3-4 shift points or firmness. I tow a boat in the summer time but not far... my neighborhood is connected to a lake so I may tow 30 miles total a season for 30 boat trips.

I deleted my previous 2011 cummins. I had plans when I bought this one to delete almost immediately, but after being an adult (LAME) I'm leaning tawdrs gears instead of deleting.

Some have said I will be disappointed with gears.

Im not looking for massive performance out of the gears. Just a happier truck. I don't drive like an high school kid, no boosted launches, no trying to spinning tires etc....

The kid in me wants to delete, the adult wants to regear to 4.10 or 4.30.....

Curious as to who is deleted with 37's on stock gears and who is stock and regeared on 37's.

The end game in the next year or two will be a deleted and geared truck.

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post #2 of 29 (permalink) Old 12-06-2019, 12:03 AM
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I would gear first instead of delete. May make you think twice on deleting after you feel the difference gears will make.

Whoever told you that you will be disappointed from a gear swap is a knucklehead.

Oh and thereís a reason why 4.10 is always talked about, because itís more than whatís needed for 37ís. Itís not because we drank the kool aid, itís because it actually is ideal. These trucks need 3.9 something with 37ís. Since none such gear exists the next best is 4.10

But Iím tired of convincing people, or trying to. You pick whatever you want. 4.10 4.30 4.56

Itís all the same (drive/feel/acceleration), only difference is final rpm.

In the end youíll be happy.

Oh and if..IF...you decide to delete later on top of the gear swap..

Oh boy..youíll be beyond happy.

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post #3 of 29 (permalink) Old 12-06-2019, 12:24 AM Thread Starter
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I would gear first instead of delete. May make you think twice on deleting after you feel the difference gears will make.

Whoever told you that you will be disappointed from a gear swap is a knucklehead.

Oh and thereís a reason why 4.10 is always talked about, because itís more than whatís needed for 37ís. Itís not because we drank the kool aid, itís because it actually is ideal. These trucks need 3.9 something with 37ís. Since none such gear exists the next best is 4.10

But Iím tired of convincing people, or trying to. You pick whatever you want. 4.10 4.30 4.56

Itís all the same (drive/feel/acceleration), only difference is final rpm.

In the end youíll be happy.

Oh and if..IF...you decide to delete later on top of the gear swap..

Oh boy..youíll be beyond happy.

You and I think alike. I did talk to a local guy with 4.56 and 37s and said it was too low. Im leaning tawrds a 4.10.

I agree with delete and gears... that's the goal.

Im a 100% DIY guy but I rank ring and pinion with transmissions. I would love to order a set of Yukon gears and slap them in this weekend but I don't have the knowledge.

So what brand of gears and what did they run you installed?

2013 Mega Laramine longhorn. 6" BDS Long arm, 22" Hostages, 37x13.50 Nitto Ridge Grapplers, Fusion Bumpers, Back flip, AMP steps, Mag Diff Covers, 4.30's.... 3 previous cummins
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post #4 of 29 (permalink) Old 12-06-2019, 12:47 AM
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AAM is good. So is Nitro. I’m using G2. They’re great too. I hear mixed reviews on Yukon.

Installed out the door was 2100 and some change for me. Doing a gear swap really isn’t that hard. It’s just time consuming and takes the correct tools.

My mechanic taught me how it’s done before he moved out of state. Gear swaps used to scare me too. Not anymore.

https://www.cumminsforum.com/forum/2...p-install.html

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post #5 of 29 (permalink) Old 12-06-2019, 01:01 AM Thread Starter
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Yea I don't have a press or anything like that. Im near houston not sure where you are. I am ok with tackling a lot... just not sure about gears alone. My dad has been a mechanic of 40 years.... He's..done....it...ALL.... I asked him about the gear swap... he said send it to a shop. Im having trouble finding a reputable shop around me.

2013 Mega Laramine longhorn. 6" BDS Long arm, 22" Hostages, 37x13.50 Nitto Ridge Grapplers, Fusion Bumpers, Back flip, AMP steps, Mag Diff Covers, 4.30's.... 3 previous cummins
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post #6 of 29 (permalink) Old 12-06-2019, 01:07 AM
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I donít have the tools either. Iíve considered investing in them so I can start doing swaps for people.

Not that familiar with H town myself.

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post #7 of 29 (permalink) Old 12-06-2019, 01:16 AM
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Sure you can!!! Just buy the tools and I can see it in big letters "nick0less drivetrain and headlight shop"

2018 Ram 2500 4X4 SLT Bighorn White 4.10 Gears/Carli Level/295 Toyo AT2's /Full Console swap w shifter /Projector Headlights with HID's-LED Highs/ B&W Turnover Ball----
2017 Dodge Ram 2500 4X4 Laramie , 35" Toyo AT's / Center Console Shifter Mod. SOLD---- 2012 Ram 2500 4X4 Crew-Silver- 4:10's / Carli 3" Coils w/35" Toyo AT2's / Ranch Hand Bumper / Center Console Swap w shifter SOLD!!!
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post #8 of 29 (permalink) Old 12-06-2019, 01:49 AM Thread Starter
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Sure you can!!! Just buy the tools and I can see it in big letters "nick0less drivetrain and headlight shop"

if your close enough for driving ill bring beer and $$$$
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post #9 of 29 (permalink) Old 12-06-2019, 01:53 AM
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@jroyster06 if you decide to go with AAM gears here is where I bought mine https://cmgearworks.com/ Very good pricing and Knowledgable guys!!!

2018 Ram 2500 4X4 SLT Bighorn White 4.10 Gears/Carli Level/295 Toyo AT2's /Full Console swap w shifter /Projector Headlights with HID's-LED Highs/ B&W Turnover Ball----
2017 Dodge Ram 2500 4X4 Laramie , 35" Toyo AT's / Center Console Shifter Mod. SOLD---- 2012 Ram 2500 4X4 Crew-Silver- 4:10's / Carli 3" Coils w/35" Toyo AT2's / Ranch Hand Bumper / Center Console Swap w shifter SOLD!!!
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post #10 of 29 (permalink) Old 12-06-2019, 01:59 AM Thread Starter
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I REALLY have no idea what im buying with gears. It looks like I need 4.10's... I chose to ignore gears for 32 years because that's wayyy to adult for me... butttt #dadlife is about dependablity now right... blah... I have no idea the difference in AAM, G2, Yukon, Mat Foley in a Van down by the river gears....

At this point you guys could tell me the purple unicorn brand is the best and I would believe y'all.... I HATE diffs and TRANS stuff!

2013 Mega Laramine longhorn. 6" BDS Long arm, 22" Hostages, 37x13.50 Nitto Ridge Grapplers, Fusion Bumpers, Back flip, AMP steps, Mag Diff Covers, 4.30's.... 3 previous cummins
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post #11 of 29 (permalink) Old 12-06-2019, 11:11 AM
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Let’s keep it simple (and reliable)

Go with AAM. They’re the same brand as OEM. You’ll have zero issues.
Here’s what you’ll need.

AAM 9.25 Ring & Pinion + Front Master Install Kit (for that size axle)
AAM 11.50 Ring & Pinion + Rear Master Install Kit (for that size axle)

That’s it. Here’s another link that sells it all as one package. It has pictures so you can see what I’m talking about.

https://8lugtruckgear.com/Drivetrain...Kit-p1816.html

I see that you have a 2013. It’s a 2500 correct? Verify your axle size by looking at the bolt configuration and searching google images. Look up “AAM 9.25 axle” and “AAM 11.50 axle”. Make sure what you’re looking at matches what you have before ordering.

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post #12 of 29 (permalink) Old 12-06-2019, 11:13 AM
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FWIW I have 37's and I went Nitro 4.30's as a compromise between the 4.10 and 4.56. 40k on them now. Broke in according to spec. No issues and happy with my choice. Just my experience.
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