speedometer calibration
I've got an 86 GMC 3/4 ton. It originally came with 7.50x16 tires (I think). I am currently running 245x75 tires, which are a lot shorter. Is there any way of calibrating my speedometer to compensate for the shorter tires?
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69 GMC 3/4 ton camper special(long term project)
85 GMC 3/4 ton (daily driver)
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"All Corvettes are red. The rest are mistakes." - John Heinricy
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