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Gear ratio with 3:73 and 285 tires


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Posted

i have an '03 2500ld silverado with a 3:73 ratio and im running 285 tires and im wondering what my actual gear ratio would be?? im not quite sure how to calculate it. I tow a 30ft travel trailer, so far it seems to do well, and i really dont want to start swaping gears, the trailer gets towed less than 3000mi a year. any help or comments would be great!!! thanks

Posted

To calculate your current "effective" gear ratio, divide the original tire diameter by the current tire diameter and multiply the result by 3.73.

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