392 Atlas transfer case install

[1996cc]

My memory was failing me on the model of transfer case control module, but going back in my thread, I ordered it from a regular Rubicon from my same year. Likely because then it will look for lockers, sway bar, etc… The Tazer or AlphaOBD allow you to adjust the ratio to 3.03:1 as needed.

I already had this reader, and it worked fine.
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You also need this SGW cable for it to allow you to write to the computer:
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[MNGladiator]

I picked up my new TCCM today and the Atlas was ordered last week. I think I read somewhere you mentioned axles. What did you end up going with for axles?

 

[1996cc]

I picked up my new TCCM today and the Atlas was ordered last week. I think I read somewhere you mentioned axles. What did you end up going with for axles?

Fusion 60/14 bolt combo.

 

[MNGladiator]

Did you do a PSC or are you thinking about it for the future?

 

[1996cc]

Did you do a PSC or are you thinking about it for the future?

I had a Redneck Ram before. With the new axles, I went with a PSC box and ram. But I still have the stock pump with the Apex boost kit and cooler. Using PSCs fancy new electric fluid. To me a mechanical pump is a step backwards and I’m not convinced the electric pumps are bad.

 

[MNGladiator]

It will be interesting to see how that holds up. I won't get the Atlas until the middle of March, supposedly. Thanks for the info and any updates you care to share will be greatly appreciated.

 

[1996cc]

It will be interesting to see how that holds up. I won't get the Atlas until the middle of March, supposedly. Thanks for the info and any updates you care to share will be greatly appreciated.

I’ve got over 5,000 miles on the Atlas and 3-4,000 with the steering now and all is still well.

 

[MNGladiator]

how are you liking the axles?

 

[XtremeRetard]

I run the same axle and pump setup.

Zero issues so far and plenty of 8 and 9 rated trails done.

I set the pump to about 1700psi like the psc one is. The apex kit is good for blowing seals at 2000.

Set the pressure with the apex gauge then remove the apex stuff (except valve) and go back to oem fittings. It will avoid leaks and seal bursts.

I have to run the electric pump.. etotque..

 

[1996cc]

Small update. Tazer has added the ability to program for the new transfer case - without needed AlphaOBD anymore. With firmware version 11.4.4, from the Performance menu, 4 Low, while holding the left arrow, pull back the high beam stalk and then push the cruise cancel button to say full time NO. Now it finally says 2H on the main dash, along with the Offroad Pages like AlphaOBD already did.

 

[Pigtrailrv]

Small update. Tazer has added the ability to program for the new transfer case - without needed AlphaOBD anymore. With firmware version 11.4.4, from the Performance menu, 4 Low, while holding the left arrow, pull back the high beam stalk and then push the cruise cancel button to say full time NO. Now it finally says 2H on the main dash, along with the Offroad Pages like AlphaOBD already did.

But you still need to change the DTCM to a non-392 jlu rubicon, correct? I'm going through this now on my 2023. Still working out the bugs. Right now I have DTCM in tazer set to NO. I have stock DTCM. I just did the part time transfer case tazer mod. I was getting all kinds of error codes from BCM, ABS, TCM, etc. Haven't retested yet.

 

[1996cc]

Correct, you still need to change the Transfer Case Control Module (DTCM).

 

[Pigtrailrv]

Correct, you still need to change the Transfer Case Control Module (DTCM).

Ok, so swap DTCM, set tazer DTCM to YES, do tazer mod to Part time. That's where we should end up for correct configuration. Agree? Thanks again.

 

[1996cc]

Yes. And use the Tazer to set the proper TCase gear ratio. 3.03 instead of the factory 2.72 - unless you did a different ratio.

 

[Pigtrailrv]

Yes. And use the Tazer to set the proper TCase gear ratio. 3.03 instead of the factory 2.72 - unless you did a different ratio.

Yes, I have set at 3.03 now. Thanks again.

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