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Thread: Tires affecting speedo?

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  1. #1
    Join Date
    Jul 2008
    Posts
    329
    It's a linear relationship. Going down 2" changes your tire size by about 6½%, so at 70 mph your indicated speed will be off by about 4½ mph.

  2. #2
    Join Date
    May 2008
    Location
    Crossett,Ar
    Posts
    2,382
    Handled. Being its hardly off Imma run my 22s. My truck is going to look like a skyjacker! Low pro 22s on a stock height SS

    06 Intimidator SS- Tuned, CAI -DD
    03 Silverado- Last incarnation 13.6... RIP
    Ls1, Pnp heads, Polluter camshaft, spray, 4k stall on the way
    "Seize the day like you seize your noodle" - Shin Chan

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