how can I tell what rear end I have in my 97 12 valve?
how do i find out what rear end i have in my 97 12 valve dually?
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:jump:
Originally Posted by texashogdogger
(Post 815802)
how do i find out what rear end i have in my 97 12 valve dually?
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i meant the gears
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call dealer and give parts guy vin off truck they can tell you. if it has been changed you have to do the old fasioned way and divide number of pinion teeth be ring gear teeth
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thanks for the info
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There will also be a tag on the diff cover, maybe covered with grim now like most, but the tag on the axle says what came factory with the truck.
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what are your rpm's at 70? if they are around 24 2500 u have 4.10s lover than that lik2 0r 2150 u have 3.55s
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mine said 3.55 on the tag in the hood :w2:
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Don't they also say the gear ratios on the tag inside the driver door?
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My tag under the hood said 4.10. I had an idea that perhaps that was wrong. I jacked up the back of the truck, put it in neutral, and turned the wheel by hand while counting how many times the driveshaft went around. I got about 3.5.
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