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Old October 8th, 2007, 06:09 AM   #1
jvh025
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Default how do i know what gearing i need

help i have a 92 yj with the 4.0 and automatic trans. it still has stock gearing but i'd like to change it to get some more power to the ground especially in sandy situations. im running 31 inch tires and it's a dd. i don't want to ruin my highway ability but a little more offroad sure would be nice. i have no idea what gearing i should run. any suggestions would be greatly appreciated.
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Old October 8th, 2007, 06:52 AM   #2
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I wouldn't bother with the expense of gearing if all you have done is bump to 31's. Do some power mods to your engine.
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Old October 9th, 2007, 06:58 AM   #3
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ive got an intake and throttle body spacer. a header is next. what else can i do?
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Old October 9th, 2007, 08:26 AM   #4
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Full exhaust. Header won't do much for you if the rest of the exhaust system is restrictive.

Please define "have an intake".
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Old October 14th, 2007, 07:30 AM   #5
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hi flo intake tube with a washable filter
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Old October 14th, 2007, 09:33 PM   #6
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Quote:
Originally Posted by jvh025 View Post
hi flo intake tube with a washable filter
That's not an "intake" as people commonly define it. I thought you meant you had an aftermarket intake manifold already. That's another thing you can do.
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Old October 14th, 2007, 10:07 PM   #7
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(desired tire size / original tire size) x original gearing
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