Graham Palmer
Club Member
Hi all, my 73 240z reads probably 15% over on the speedo vs GPS, I dont know the diff ratio, or the pinion ratio/colour. I have also changed from stock slot mags to Rotas. Any tips on the easiest route to determine which speedo pinion I should change to?..
Or, do I have to take the diff cover off?...guess there is a gasket on there ?..
Thanks
Or, do I have to take the diff cover off?...guess there is a gasket on there ?..
Thanks