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You are watching: 2001 dodge ram 1500 rear end gear ratio


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Gear ratio question96 ram 1500 5.9L auto. Whats the factory gear ratio on my truck? Want to change to help with the 22" wheels.
Check for a tag on the rear diff. It will have the gear ratio on it.Or, check for a sticker on the underside of the hood. That"s where I found the info on my "99 4X4. They were 3.55"s.
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Check for a tag on the rear diff. It will have the gear ratio on it.Or, check for a sticker on the underside of the hood. That"s where I found the info on my "99 4X4. They were 3.55"s.
checked both....nothingisnt there a way to check it my jacking up rearend, spinning tire counting revs. and counting revs. of driveshaft and calculate gear ratio?
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Here is the manual method.1. Jack up the rear of the truck. Put the rear axle on jack stands.2. Block the front tires3. Mark the drive shaft and axle housing the same to determine when the drive shaft makes 1 complete revolution.4. Put the transmission in neutral.5. Have someone rotate a rear tire slowly while you count the rotations of the drive shaft.6. Count the rotations of the drive shaft in 1 complete turn of the tire.The number of times your drive shaft rotated is the gear ratio. For instance if your drive shaft rotated 3.5 times, then you have a 3.55:1 gear ratio.
My "99 sport QC 5.9 4x has 3.92s & limited slip. It may have a tow pkg to get 3.92s. It has a Reese hitch & 7 pin connector. The most common ratio is 3.55 thou.
or you can pull the diff cover off and count the teeth on both the ring and pinion gears and divide them, for EXAMPLE if your ring gear has 32 teeth and your pinion has 9 teeth you have a 3.55 ratio
the chalk marking method is simpler & you can"t get a possible seal leaki wouldn"t take off the cover UNLESS you just want to see what the wear pattern is like & you know what it should look like
2016 Ram 3.0 diesel 3.55 w/LSD, G2 tonneau, Line-X, Weathertech mats, Mag-Hytec differential cover, Nfab bars, CB radio, EGR bug deflector
:iagree: Never take something apart unless you absolutely have to. Another way is to call your dealer with the VIN and see if they can give you the build sheet.

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