The rear end gears were changed which is why the speedometer runs fast. When I am traveling at 70mph the speedo reeds approx. 95mph - I tracked it with the vehicle behind me asking the speed we were traveling.
I am wanting to purchase the correct speedo driven gear thinking that someone that has a 3.42 rear end would know which speedo gear to purchase. I have been advised of the calculations to determine but that requires knowing which gear is in the transmission - I believe the speedo gears have not been altered from stock. Does anyone know what the driven speedo gear is in the 403 transmission. Or, has anyone upgraded their transmission to run with a 3.42 rear end and which speedo gear is used.
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