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speedometer gear drive

Posted: Sun Jan 29, 2012 9:04 am
by groggy1
how many teeth on gear drive on 350 turbo do I need for 373 rear for speedo to read right or at least close

Re: speedometer gear drive

Posted: Sun Jan 29, 2012 9:12 am
by t5montecarlo
With a 25-inch tire, you need a 3:1 ratio between the drive/driven gear. You need to know how many teeth are on the gear inside the transmission and then multiply by 3 to get the proper driven gear (the one that is easily removed).