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Jeep Wrangler JK
JK General Discussion
Re-gear advice for newly purchased 2008 JK
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<blockquote data-quote="MacGuyver" data-source="post: 443749" data-attributes="member: 18877"><p>37s on a dana 30 is.. possibly fine if no off-roading is going to happen. I would verify that it actually is 3.73 ratio that is on there. Those years of jeeps often came with 3.21.</p><p></p><p>You didn't mention if it is a manual or auto. 37s are pretty big for a stock 3.8 auto, and it would feel pretty powerless. Here is a link to a post I made the other day addressing something similar. Your first step is establishing what the ratio is now. </p><p></p><p>[URL unfurl="true"]https://wranglerjkforum.net/threads/loosing-power-going-up-hill.29543/post-443695[/URL]</p></blockquote><p></p>
[QUOTE="MacGuyver, post: 443749, member: 18877"] 37s on a dana 30 is.. possibly fine if no off-roading is going to happen. I would verify that it actually is 3.73 ratio that is on there. Those years of jeeps often came with 3.21. You didn't mention if it is a manual or auto. 37s are pretty big for a stock 3.8 auto, and it would feel pretty powerless. Here is a link to a post I made the other day addressing something similar. Your first step is establishing what the ratio is now. [URL unfurl="true"]https://wranglerjkforum.net/threads/loosing-power-going-up-hill.29543/post-443695[/URL] [/QUOTE]
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Jeep Wrangler JK
JK General Discussion
Re-gear advice for newly purchased 2008 JK
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