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Finding my Ring and Pinion Size?

This is a discussion on Finding my Ring and Pinion Size? within the Automotive Support forums, part of the Tech Support Forum category. I have a 99 Dodge Dakota 4wd v8. I have to rebuild the rear because the gears sound like a


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Old 03-04-2006, 07:36 PM   #1
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I have a 99 Dodge Dakota 4wd v8. I have to rebuild the rear because the gears sound like a they a grinding everytime I take off from a stop.

How do I find out what size rear I have and the gear ratio?

-Rem

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Old 03-04-2006, 08:02 PM   #2
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Most Chrysler/Dodge/Plymouth will have a tag hanging off one of the differential cover bolts. If not you can always count the teeth.

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Old 03-05-2006, 05:24 AM   #3
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On our older dakotas the gear info was printed on a decal on the inside of the hood, on our newer ram pickups it is listed on a decal on the glove box door. You probably have Chrysler 9.25 differentials and the common ratio is 3.55, there sometimes is a metal tag on one of the cover bolts with the number of teeth listed, but it is often very hard to read.
Ebay has some excellent sources of new and used parts and some of the sites have a lot of helpful info, identification pictures, the 9.25 has a stopsign shaped symetrical cover for instance. There are complete and detailed instructions on dissassembly and setup available online.
You will be able to save hundreds of dollars buying your parts online, I am very happy with Riverside Gear, fast service & fair prices, but it sounds like you may need a complete assembly which is also available on Ebay.
Don't wait too long, my niece drove her chevy until the teeth were completely worn off, that added a $150 tow bill to the repair. Good luck
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Old 03-05-2006, 08:49 PM   #4
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Open the glove box, copy all the info onto a pices of paper, then head to the dodge dealer and ask them. They can decipher the option codes.
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Old 06-01-2010, 10:48 AM   #5
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I have a 2005 Dodge Dakota 3.7 2wd auto how can i fine the rear end gear ratio???

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