Jon White Posted January 25, 2008 Share Posted January 25, 2008 Has anyone got any idea how I can calculate which speedo drive gear I need? Anyone written a wizzy spreadsheet etc for it, or know how to calculate it?? I've got 4.75 ring and pinions on 33" tyres. Speedo is a standard series 3 one from a LWB but I cant rememeber off the top of my head how many turns per mile it is, but I can easily look when i get home! Any help will be duly appreciated! Cheers Jon Quote Link to comment Share on other sites More sharing options...
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