What axles do I have? 2020 Wrangler Willys with the 3.0 Diesel

CapnKing

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I have a 2020 Wrangler Willys with the 3.0 Diesel. How can I determine what axles I have. I want to do gear oil changes on it.
Any help is appreciated!
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CapnKing

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blueweb

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3.73 Axle Ratio, the same found on the Rubicon EcoDiesel. 4.10 axle ratio for Rubicons are for petrol engines.
 

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most dealers after you buy your jeep they email you a build sheet. (window sticker)

it will tell you what kind of traction control / differentials / etc.
 
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CapnKing

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most dealers after you buy your jeep they email you a build sheet. (window sticker)

it will tell you what kind of traction control / differentials / etc.
I actually bought the Jeep used--it had 700 miles on it
 
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CapnKing

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Thanks--this worked!! My window sticker says I do have the Anti-spin differential rear axle!
Sorry--one more question--the anti-spin differential-does it require the friction modifier?
 

00 Trans Ram

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You can also simply look underneath the Jeep and visually ID the axles.

https://www.extremeterrain.com/wrangler-jeep-axle-identification.html

TLDR; Dana 30 looks almost like a square, or hexagon, with straight, vertical sides. Dana 35 is almost a perfect oval (longer horizontally than vertically). Dana 44 also has a hexagonal shape with straight vertical sides, but has a noticeable "hump" on one side of the diff; the 44 is not symmetrical, with the 7-o'clock and 11-o'clock (left) sides being steeper, and the opposing sides (right) being shallower.

Dana 30
dana-30-wrangler-cover.jpg


Dana 35
dana-35-wrangler-cover.jpg


Dana 44
dana-44-wrangler-cover.jpg


This is the quickest way to really tell what you have when you buy a used Jeep, as the owner may have swapped axles. You can also look for number stampings on the axle, but they can be hard to find.
 
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CapnKing

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You can also simply look underneath the Jeep and visually ID the axles.

https://www.extremeterrain.com/wrangler-jeep-axle-identification.html

TLDR; Dana 30 looks almost like a square, or hexagon, with straight, vertical sides. Dana 35 is almost a perfect oval (longer horizontally than vertically). Dana 44 also has a hexagonal shape with straight vertical sides, but has a noticeable "hump" on one side of the diff; the 44 is not symmetrical, with the 7-o'clock and 11-o'clock (left) sides being steeper, and the opposing sides (right) being shallower.

Dana 30
dana-30-wrangler-cover.jpg


Dana 35
dana-35-wrangler-cover.jpg


Dana 44
dana-44-wrangler-cover.jpg


This is the quickest way to really tell what you have when you buy a used Jeep, as the owner may have swapped axles. You can also look for number stampings on the axle, but they can be hard to find.
Great info--thanks for your help!
 
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