Upgrading to 40's what gear ratio?

[gsxr310]

Mainly asking those running 40's already. 4.88, 5.13, or 5.38? Thanks!

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[texastonka]

Mainly asking those running 40's already. 4.88, 5.13, or 5.38? Thanks!

Good question. Been thinking about this too. Thinking of 6.4 hemi swap as well. Depends on the type of wheeling you do and transfer case gearing. With a 4:1 Rubicon and a hemi you should be able to get away with 4.88 and have power band great on the highway as well a enough grunt in the rocks, or if you don't mind higher rpm on highway go 5.13 with a hemi.
Sticking with the V6 I think 5.13 is all around gear for it with 5.38 being more for off-road only rigs or people who don't mind high RPM on the highway.

 

[gsxr310]

Ya I’m gonna go w 5.13’s!

 

[OffRoadWarehouse]

5.13 is definitely the way to go. You will be able to move with no issues! Let me know if you want to pick some up

 

[DesertsJL]

Heck, I’m running 35’s with 5.38’s and I love it. Running 40’s, go as deep as you can.

 

[dcam]

Mainly asking those running 40's already. 4.88, 5.13, or 5.38? Thanks!

Are you still happy you went with 5.13? How's the shifting on the auto - does it go into 8 speed on hwy?

 

[gsxr310]

What’s up dcam!? Super happy w the 5.13s. Shifting wise, it feels like when I had the stock 33s... so yes, 8th gear def comes back!

 

[twisty]

What’s up dcam!? Super happy w the 5.13s. Shifting wise, it feels like when I had the stock 33s... so yes, 8th gear def comes back!

That's with 40s and stock ruby axles?

 

[gsxr310]

That's with 40s and stock ruby axles?

Negative on stock axles. I’m running Currie axles.

 

[Jeepdude101]

Negative on stock axles. I’m running Currie axles.

Awesome Jeep love the Nitto’s I’m not going 40s but wondering with a 6speed and 40s would you go 5.13’s or 5.38’s

 

[gsxr310]

Awesome Jeep love the Nitto’s I’m not going 40s but wondering with a 6speed and 40s would you go 5.13’s or 5.38’s

Thanks! I’m not sure what would work best w/ a manual. Hopefully someone w/ one will chime in.

 

[islandtees]

5.38's with 40's.​

 

[twisty]

Negative on stock axles. I’m running Currie axles.

NICE! Curious as to how it drives now with the weight of the Currie 60s. Can you feel a difference, motor peppiness still there?

 

[Deezus]

Upgrading to Dana 60s, what gear ration for highway driving and weekend wheeling?
4.88 or 5.13?

 

[dcam]

Upgrading to Dana 60s, what gear ration for highway driving and weekend wheeling?
4.88 or 5.13?

Go with 5.38.....I have 40's on 1 Tons and see the full range of my gears often....both on road and off. The Jeep can climb steep road grades with ease at 70+

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