does anyone know how many teeth the speedometer gear has in the trans of 1969 gto with 4 speed , 355 geaars and 3.90axle ratio
I think what he might be hoping to find out is what tooth count it came with so he can do the math and buy just the one he needs.Hi,
The variables related to your question are numerous. While not scientific, you can purchase inexpensively on eBay or many other places a selection or “driven” gears and experiment. There are numerous mobile phone apps that accurately gauge your speed so you can determine if the gear you put in the bullet housing results in your speedometer matching the speed on the app.