Reverend Posted June 6, 2012 Share #1 Posted June 6, 2012 I wrote to swap-section but no-one noticed it, so i wrote to here too. Im about to change the original mp/h gauge to km/h (from 71 240z) and i wonder if anyone has experience to share? Also im having a "new" 5 speed gearbox and i've heard that you must change pinion gear to get the correct reading to speedometer, what would be the correct gear? Link to comment https://www.classiczcars.com/topic/43436-speedometer-swap-and-pinion-gear-question/ Share on other sites More sharing options...
olzed Posted June 6, 2012 Share #2 Posted June 6, 2012 It all depends what the diff ratio was of the donor vehicle. The correct gear is in relation to your tyre size and diff ratio.Try what you have and check against another vehicle. It may be OK. Link to comment https://www.classiczcars.com/topic/43436-speedometer-swap-and-pinion-gear-question/#findComment-392201 Share on other sites More sharing options...
Reverend Posted June 6, 2012 Author Share #3 Posted June 6, 2012 Tranny is from stock 77 as far as i know so the diffy is 3:545 right? Tires are 195/65/14 Link to comment https://www.classiczcars.com/topic/43436-speedometer-swap-and-pinion-gear-question/#findComment-392202 Share on other sites More sharing options...
Yarb
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