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Atlas II 4 speed
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=88&t=78407
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Author:  JeepNCrowd [ Wed Feb 26, 2014 10:48 am ]
Post subject:  Atlas II 4 speed

So I'm trying decide what to do when my X-fer case blows up. That way when it does I can place my order for an upgraded case. I'm considering the Atlas II 4 speed. It's got 1:1, 2.72:1, 4.3:1, and 11.70:1 reduction. I'll miss my select trac but this seems awesome. To those of you that are mechanically inclined, would I have a problem running that low of a gear ratio in an automatic. I know that when going down hills in low if I get my rpms above the "sweet spot" they shoot up pretty fast. (and that's with a stock 2.73:1 ratio). Also what kind of other mechanical breakage can I expect with that kind of torque? I'd imagine my brakes would have trouble stopping that beast.
http://www.rustysoffroad.com/jeep-driveline-driveshaft/transfer-cases-and-shifters/atlas-transfer-case/advance-adapters-atlas-4-speed-11-70-transfer-case.html

Author:  Bmxer524 [ Wed Feb 26, 2014 11:35 am ]
Post subject:  Re: Atlas II 4 speed

I can't ever see a need for 11.7:1 in our KKs.... BUT it's your Jeep, if that's what you want, make sure you take a ton of pics, keep everyone posted and tell us how you did it, how it goes and of course any problems.

Author:  JeepNCrowd [ Wed Feb 26, 2014 11:46 am ]
Post subject:  Re: Atlas II 4 speed

Bmxer524 wrote:
I can't ever see a need for 11.7:1 in our KKs.... BUT it's your Jeep, if that's what you want, make sure you take a ton of pics, keep everyone posted and tell us how you did it, how it goes and of course any problems.

I like doing things excessively. I'd rather have it and not need it than need (or want it) and not have it. I doubt I would use the 11.7 very often, I would probably use the 4.3 most of the time in the rocks. But it would be nice to slowly crawl down some steep hills with out touching the brakes.

Author:  Grannysgoat [ Wed Feb 26, 2014 12:56 pm ]
Post subject:  Re: Atlas II 4 speed

Not sure it will fit. If it would, IMO, a waste of money unless you go SFA since the Libby's don't have enough ground clearance to do serious rock crawling anyway.

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