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speedo reads high with 35"s and 4.10's, think speedo gears were changed?

Discussion in 'The Garage' started by foxman, May 18, 2004.

  1. foxman

    foxman 1/2 ton status

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    speedo reads high with 35\"s and 4.10\'s, think speedo gears were changed?

    I figured that the speedometer would read low but when I'm going 60 it reads 75. does this mean the gears have been changed in the t-case already? just wondering before I crack her open...

    Thanks


    Jeremy
     
  2. 4xcrazy

    4xcrazy 3/4 ton status

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    Re: speedo reads high with 35\"s and 4.10\'s, think speedo gears were changed?

    Did you recently install the 4.10's?
     
  3. foxman

    foxman 1/2 ton status

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    Re: speedo reads high with 35\"s and 4.10\'s, think speedo gears were changed?

    no, it came with the gears and tires already... Just getting the new tcase squared away.


    thanx..
     
  4. HarryH3

    HarryH3 1 ton status Author

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    Re: speedo reads high with 35\"s and 4.10\'s, think speedo gears were changed?

    If the truck originally had 3.08's then swapping to 4.10's and 35's would result in the speedo reading high.
     

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