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Old 11-16-2017, 12:02 PM   #1 (permalink)
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Atlas automatic question

I'm swapping an AW4 with an atlas this winter in my Toyota. I'm keeping the 22re for now. I'm planning on a 4.3 or a 5.0 atlas, anyone have experience with this? My concern isn't the trail, my concern is will I be limited too much on the roads between the trails because I don't quite have enough power for high range, and low range may be too low? I'm running one tons, 42 irocs and soon to be 43 sx's so heavy tires.

I'd appreciate any input if you have experience with a similar setup thanks!

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Old 11-16-2017, 03:15 PM   #2 (permalink)
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I have a 4spd in mine (5.44). I only use high range for long fast sections. Between most trails I use 2:1. Even with 10psi of boost high range is to high. Having gearing options is nice.
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Old 11-16-2017, 03:29 PM   #3 (permalink)
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Thanks my concern is low range may be too low for all but the most wide open stuff
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Old 11-16-2017, 05:46 PM   #4 (permalink)
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What axle ratio?and anything done to the motor?

Have you ran dual tcases or tcase 4.7 gears with this setup? I ask because this would give you a starting point.

I can almost guarantee your going to want a 4speed atlas probably in 5.44

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Old 11-16-2017, 10:34 PM   #5 (permalink)
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5.86 in the axles and dual ultimate for probably 10 or so years. Stock 22re, too many big climbs these days for a 5 speed anymore.
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Old 11-17-2017, 06:08 AM   #6 (permalink)
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I have 5.38's in mine with 39" reds. 1st gear is great for technical crawling. 2nd for easy stuff and bumping the big waterfalls. 3-4 between obstacles.

I would say its about the perfect ratio for a little 4cyl.
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Old 11-17-2017, 08:46 AM   #7 (permalink)
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I have a 22re/A340/Atlas II 4.3 in my rig on tons 5.38s and 39" reds.

High range is usable suprisingly between trails. I do have a RAD Baja controller to manually shift the auto. Assume you are going this route since your previous trans was a 5 speed.

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Old 11-17-2017, 09:05 PM   #8 (permalink)
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Ya that's exactly what I was looking for. I'm planning 43 sx's, I don't really want a 4 speed. I'm fine with manually shifting my auto.
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Old 11-18-2017, 07:16 AM   #9 (permalink)
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Quote:
Originally Posted by overeasy View Post
I have 5.38's in mine with 39" reds. 1st gear is great for technical crawling. 2nd for easy stuff and bumping the big waterfalls. 3-4 between obstacles.

I would say its about the perfect ratio for a little 4cyl.
My setup has 5.29s and my response is the same as Oeasy.

Second gear high range is a 40mph rocket ship on the fire roads, shifting up to third is scary. Low range first gives me all the tire control that I need for technical crawling.

I am thinking of messing with the stall in my converter though, I just canít quite get into the boost like I want on waterfall type launches.
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