Atlas transfer case questions

turbineguy

turbineguy

New member
ridg3runner said:
True but after yesterday I'm starting to wonder what it was I wanted the manual for, lmao. When we get the Mrs hers it'll be an auto for sure.
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This. It helped when I installed my Rubi t-case in my 6-speed unlimited sport, but sometimes I still need to ride the clutch to slow it down on some technical obstacles. I also miss my sport ratio for trail riding.

I would like to get an Atlas 4 with either 1.0:1 / 2.72:1 / 3.80:1 / 10.34:1 or 1.0:1 / 2.72:1 / 4.30:1 / 11.70:1.


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turbineguy

turbineguy

New member
OverlanderJK said:
Two words, hand brake.
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Could you be more specific?

I've played around with hand brake, but it ends up stalling occasionally.

Should I leave handbrake on, then come off clutch, then release hand brake slowly to start rolling?

I'm sure there is a knack for it, and 99% of the time there is no issue, but love to learn.

Wish I'd went automatic.
 
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Fir-na-tine

Fir-na-tine

Caught the Bug
turbineguy said:
Could you be more specific?

I've played around with hand brake, but it ends up stalling occasionally.

Should I leave handbrake on, then come off clutch, then release hand brake slowly to start rolling?

I'm sure there is a knack for it, and 99% of the time there is no issue, but love to learn.

Wish I'd went automatic.
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Apparently you cannot run an Atlas 4 with 2012-up with automatic transmission.......the Atlas 2 speed yes.....but not the Atlas 4

http://www.advanceadapters.com/prod...s-for-standard-jeep-jk-wrangler-applications/

The 2012 Jeep automatic transmission (A580) will not work with the Atlas 4 speed transfer case due to the computer controls equippment allowing only one low range input. The NSG-370 manual in this 2012 JK does not use the same module, so the 4 speed is still an option for this year with this transmission.

~Woodrow~
 
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MC2003TJ

MC2003TJ

New member
I have an Atlas II with 3.8:1 ratio and it is bullet proof. 4.11 ford 9" axle ratio with 35" tires. Automatic transmission. I think it is a good crawl ratio and very strong gear sets for both the transfer case and axles. People who have been behind me say that I am too slow when in 4-low first and second gears. I would rather be safe and slow than fast and broke. I ran the Rubicon and the Dusy Ershim trails back to back last summer with no issues. Best of luck!!
 
suicideking

suicideking

New member
One more vote for Rubi tcase. It would be a lot less expensive. Not just in parts -- figure a Rubi Tcase will bolt right in and use your existing shifter to activate. Get a programmer and you're done. A friend of mine just had one installed. It was $1300 for parts and labor. He got it done by a place that does Hemi swaps. So he got a Rubi Tcase with less than 500 miles on it.
 
JKPE

JKPE

New member
ridg3runner said:
I may wind up discussing it with him. Just priced a 4sp Atlas and it's going to cost me 4 grand just for the t-case and cable shifter, doesn't include another session with the drive shaft shop.
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Just spend it on the EVO DTD and drive faster!:D
 
CRAZYCASEY

CRAZYCASEY

New member
Been running the 4 speed for a couple years. Ratios are 1:1 - 2.72:1 - 4.3-1 - 11.??:1
With 37" tires the 4.3 was about all I used. With the 40s I use all the ratios. 2.72 is good up to 40mph for driving through the desert to trails. 4.3 is good up to 25mph but I do wish it was in the 5.0-5.5 range for crawling. I seldom use the 11:1 unless I need to idle up something very steep but it comes in handy occasionally.

I picked up my atlas used for a great price but if I ordered another one I would look for a ratio in the 5s even if that kept me in a 2speed.
 
wayoflife

wayoflife

Administrator
Staff member
As it has been mentioned a couple of times now, I personally would recommend a Rubi T-case as it'll be a lot cheaper, a direct bolt on, come with 4:1 low range and will get the job done. I still run one on Rubicat and only swapped mine out for an Atlas on Moby when I did the motor swap. Being that Moby was a manual, I don't know if I would have bothered to do this otherwise EVEN WITH the 40's I am pushing.
 
ridg3runner

ridg3runner

-
wayoflife said:
As it has been mentioned a couple of times now, I personally would recommend a Rubi T-case as it'll be a lot cheaper, a direct bolt on, come with 4:1 low range and will get the job done. I still run one on Rubicat and only swapped mine out for an Atlas on Moby when I did the motor swap. Being that Moby was a manual, I don't know if I would have bothered to do this otherwise EVEN WITH the 40's I am pushing.
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You aren't concerned about it being a chain drive at all?
 
wayoflife

wayoflife

Administrator
Staff member
ridg3runner said:
You aren't concerned about it being a chain drive at all?
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What I can tell you is that since 2007, I had racked up over 100,000 miles on Moby and being that I work from home, most of those were driving out to the trail, wheeling them like you see me wheel on our videos and then driving home again. Not saying that a gear driven Atlas isn't better or that I'm not happy that I now have one, I just don't think the NP241OR being chain driven is as bad as some would suggest. After all, it is the reason why I still run one on Rubicat. Of course, that's just my opinion.
 
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