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Discussion Starter · #1 ·
how do i find out what i got....in door under axle all i c is d1...???????:usflag
 

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if you haven't done anything to it you have 3.73 gears... there should be a tag on the differential that says it.
 

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D1 = 3.73 gears with limited slip.
 

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Also, unless you have stock sized tires your gear ratio is not effectively going to be a 3.73. That's like my truck has 3.73 gear ratio, but I put 35" tires on it. My effective gear ratio is more like 3.3-3.4.
 
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