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PaulW 08-20-2005 06:27 AM

How to identify rear axle ratio
Hi Folks,

What is the easiest way to find out what rear axle ratio a TJ has? Is there a code on the door data plate/sticker or someplace else. I'm looking at some used TJs and the dealers/sellers don't always know what the ratio is.


Rocjeeper 08-20-2005 06:45 AM

There is a tag on the diff housing that is held on by the diff cover bolts. The gear ratio is always on that tag. It may be a little tricky to read. It may look like 04.10 for 4.10 gears. Your choices would be: 3.55, 3.73, 4.10.

jeeperman 08-20-2005 08:52 AM

^^^^^ What he said...

In addition, we could probably figure out what the gear ratio is based on year, transmission type, and axle. Also, dealers should be able to look up axle ratios by VIN number (used truck) or it should be on the window sticker (at least it was on mine 3 years ago...) Have fun in your search and let us know if we can help you!

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