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  #1  
Old 08-07-2011, 02:44 PM
mcfarlinclan mcfarlinclan is offline
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Default rear end gear ratio

how do i go about determining the rear end ratio,bought truck used. 2009ram 1500 4.7 liter auto, ram box crew cab.
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Old 08-07-2011, 06:04 PM
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There are a few ways...

1. It's on a metal tag affixed to the rear diff, usually bolted through on the diff cover.

2. There may be a sticker in your glovebox.

3. Go to the link below, click on the other link, fill in the info and get a build sheet for your truck by VIN. It will tell you exactly how it was built.

http://www.ramforumz.com/showthread.php?t=71325
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Old 08-07-2011, 08:38 PM
mcfarlinclan mcfarlinclan is offline
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thanks,MADDOG, mack!
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Old 08-07-2011, 09:31 PM
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Yer welcome. Get the print out...it has a lot of good info you may need to know later.
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Old 08-07-2011, 10:41 PM
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Since yours is a 4th generation Ram, there may be a sticker on the rear axle (passenger side) with the ratio printed on it. Sorta like this showing 3.92 gears. -

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Old 08-11-2011, 01:57 PM
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Checked mine and the window sticker but no avail. Can't find my rear end ration anywhere on the stinkin thing. I think they're running 3.55's on it but I hope no lower than that. If its lower, I may end up with bigger tires and changing them out to yukon 4.10's or something of that nature.
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Old 08-29-2011, 10:49 PM
mike49 mike49 is offline
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Quote:
Originally Posted by MADDOG View Post
There are a few ways...

1. It's on a metal tag affixed to the rear diff, usually bolted through on the diff cover.

2. There may be a sticker in your glovebox.

3. Go to the link below, click on the other link, fill in the info and get a build sheet for your truck by VIN. It will tell you exactly how it was built.

http://www.ramforumz.com/showthread.php?t=71325
that's a handy link, especially for me, who bought the truck used

thnx
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