Hello,
We've discussed the Proflash programmer instructions before. Although they say to measure top to bottom to get tire height, that measurement is dependent on tire pressure and tread height (and probably other variables that my feeble mind can't envision!). Make a mark on your tire at the 6:00 position and a the ground (level ground) and roll your vehicle through one complete tire revolution and mark the groung again at the completed revolution. Now measure the distance between the two ground points (this equals the circumference of your tire). C=2 x pi x R and D (tire height)=2 x R.
Pi is roughly 3.1416.
Hope this helps.
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\"Doc\"-sqrd
\'03 Red, red grill, Gobi rack/spare tire/ladder, black chrome stuff, Warn 9500ti multimount frt/rr, Pioneer NAV system, Gobi frt/rr lights, brush guard lights, Xenarc HIDs, black chrome wheels waiting for 37\" tires.
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