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Jeep Wrangler JK
JK General Discussion
Can I use a Flashcal to reset the computer to OEM specs and the wheel size that is on the Jeep now?
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<blockquote data-quote="MacGuyver" data-source="post: 432499" data-attributes="member: 18877"><p>You don't need to pull the covers, I checked the ratio by jacking up the wheels, putting it in neutral and rotating the back tire. (the other rear tire needs to be held still) when doing that count the rotations of the drive shaft. that is your gear ratio. You can then do the same for the front.</p><p>As stated above, it is super important that front and back are the same. </p><p></p><p>The vid here shows how, though he doesn't mention that you need to hold the opposite tire in place. Or I guess you could just rotate the one tire twice.</p><p>[MEDIA=youtube]uU6WJXjZf4Y[/MEDIA]</p></blockquote><p></p>
[QUOTE="MacGuyver, post: 432499, member: 18877"] You don't need to pull the covers, I checked the ratio by jacking up the wheels, putting it in neutral and rotating the back tire. (the other rear tire needs to be held still) when doing that count the rotations of the drive shaft. that is your gear ratio. You can then do the same for the front. As stated above, it is super important that front and back are the same. The vid here shows how, though he doesn't mention that you need to hold the opposite tire in place. Or I guess you could just rotate the one tire twice. [MEDIA=youtube]uU6WJXjZf4Y[/MEDIA] [/QUOTE]
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Jeep Wrangler JK
JK General Discussion
Can I use a Flashcal to reset the computer to OEM specs and the wheel size that is on the Jeep now?
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