question about diff front and rear axle ratios - JeepForum.com

 
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post #1 of 9 Old 12-30-2007, 09:38 PM Thread Starter
90XJPIONEER
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question about diff front and rear axle ratios

if the 2 axles are diff ratios, how do they not spin at diff speeds?

if one was 3.55 on the front, and rear is say 3.07, wouldn't the tires always be spinning at diff speeds?


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post #2 of 9 Old 12-30-2007, 09:51 PM
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short answer...Yes..

Some competition mud boggers use a different ratio in the front to increase wheelspin over the rear to help keep it straight down the lane..

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post #3 of 9 Old 12-30-2007, 10:23 PM
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If your axle ratios are significantly different, such as 3.07 and 3.55, your Tcase will eventually blow (or some other driveline component) when using 4 wheel drive.


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post #4 of 9 Old 12-30-2007, 10:31 PM Thread Starter
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Quote:
Originally Posted by Crashnburn80
If your axle ratios are significantly different, such as 3.07 and 3.55, your Tcase will eventually blow (or some other driveline component) when using 4 wheel drive.
any idea what it is on the stock XJ?

off the factory, do they come the same?

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post #5 of 9 Old 12-30-2007, 10:56 PM
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not sure about what came stock, but they would have to be the same.


I have seen hardcore trail rigs run different gears front and rear to compensate for different tire sizes. Not sure why they didn't use the same tire size though.

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post #6 of 9 Old 12-30-2007, 11:34 PM
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Most of the time, they are very close, but not the same. Ex. 4.10 with 4.11

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post #7 of 9 Old 12-31-2007, 12:03 AM
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If the front and rear have different sized ring gears you will have slightly different ratios. If you have a D44 front and rear, you will likely have the same ratio.

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post #8 of 9 Old 12-31-2007, 12:23 AM
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XJ's with auto stock is 3.55. you have a 2wd posted are you getting a 4wd or gonna convert the 2wd to 4wd?
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post #9 of 9 Old 12-31-2007, 12:54 AM
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Quote:
Originally Posted by mylt1
XJ's with auto stock is 3.55. you have a 2wd posted are you getting a 4wd or gonna convert the 2wd to 4wd?
it was actually me posting from my bud's account cuz I was over at his place...

he doesn't need to worry about this, its me who was actually curious

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