Are transfer cases interchangeable from diesel Rubicon to Overland/ Sport? Going from 4:1 to 2.7:1.

[Pescatoral Pursuit]

Is this the same transfer case on all the diesels with just different internal gear ratios?

For what I do, in 4L, 4:1 makes 1st and 2nd gears on my diesel virtually obsolete, and I'd rather trade for more wheel speed.

Has anyone made this swap on their Rubicon, or swapped in a Rubicon transfer case?

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[u-joint]

All Gladiators have exactly four transfer cases regardless of engine*.

• 4:1 Rock-Trac Full Time 4WD t-case
• 4:1 Rock-Trac HD Part Time 4WD t-case
• 2.72:1 Selec-Trac Full Time 4WD t-case
• 2.72:1 Command-Trac Part Time 4WD t-case

* - ok, well, I guess the diesel cannot be equipped with the full-time variants.

And, as far as I'm aware, all four of these physically are interchangeable. The only gotchas are the computer and specifically in regards to the full-time variants.

On the JK platform I've heard of people who swapped their Sport t-case out for one from a Rubicon, and I can honestly see no reason the reverse wouldn't be true - even for our Gladiators.

I'm interested in hearing if anyone knows more though.

 

[Pescatoral Pursuit]

According to Moparts all diesels share the same transfer case:

https://store.mopar.com/oem-parts/mopar-mp3022-transfer-case-68338913aa

Hmm.

 

[u-joint]

According to Moparts all diesels share the same transfer case:

https://store.mopar.com/oem-parts/mopar-mp3022-transfer-case-68338913aa

Hmm.

I'm not sure why they're listing that, because the Rubicon and non-Rubicons absolutely come with different t-cases.

And, unless it's just marketing fluff, as best as I can tell, the t-case for Diesel is the same for non-Diesel of the same trim level (excluding the full-time option).

Very curious now.

 

[Pescatoral Pursuit]

Can anyone confirm these part numbers for 3.0 ecoD auto Gladiator transfer cases:

Rubicon pn 68298660AC rock trac
OL/ SPT pn 68298655AC cmd trac

 

[Vtur]

Alfaobd shown that diesel Overland has 2.72:1 tcase.

 

[Sduncan]

I believe the bolt pattern is different from the 850 transmission to the 875 ( the diesel has the larger transmission). AMW machines a billet from half to adapt the 875 trans to the non diesel case. This is due to them using the 875 transmission in their V8 installs.

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