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Old 09-21-2015, 12:00 PM   #1 (permalink)
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4:1 low enough with auto/V8 combo?

Putting together a new build, going to be running an atlas 4spd. Specs are 5.3/4L60/5.13's/37s in a YJ. Trying to decide on either 4.08:1 or the 5.44:1 overall ratio. For me the 4:1 case makes more sense. 1.5 for sand and snow, 2.72 for regular trails and 4:1 for technical stuff. I'm just wondering if 4:1 is going to be low enough for the technical stuff. I've been told that there is such a thing as too low with an auto, but I don't know where that is. I'd be at 64:1 with the 4 case and 85:1 with the 5.44 case. Looking for personal experiences on this, thanks.
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Old 09-21-2015, 12:23 PM   #2 (permalink)
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Yes, otherwise you will be driving through the brakes.
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Old 09-21-2015, 12:30 PM   #3 (permalink)
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I also agree that is a great combo.
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Old 09-21-2015, 12:38 PM   #4 (permalink)
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similar setup I have, 6.0/th400/3.8 case. Maybe old a few snow wheeling instances I wish I had slower for the deep snow to stay on top but most the time I wish I had a 2:1 or an overdrive for bombing through the snow when traction is decent.
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Old 09-21-2015, 01:14 PM   #5 (permalink)
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Your good - thats what I run basically,

6.0/4L80/5.38's on 42's with 4:1 .. Good all around mix for slow and fast,
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Old 09-21-2015, 03:48 PM   #6 (permalink)
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Thanks for the input guys, 4:1 it is.
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