cnchotrods
Well-known member
I'm wondering what kind of rpm and mph I can expect with the rearend gears and tires I have. I'm hoping someone out there can help....Here's what I have.
I'm running a Model A rearend with 3:78's
Coker tires that are 30.5" Tall
A Flathead with a '46 model 3-speed. I'm not sure of the final gear ratio in the trans.
I know Moroso used to have a chart to figure this out but it's not available anymore.
I'm hoping that I can run down the highway OK without winding up the flathead too much. Anybody know?
I'm running a Model A rearend with 3:78's
Coker tires that are 30.5" Tall
A Flathead with a '46 model 3-speed. I'm not sure of the final gear ratio in the trans.
I know Moroso used to have a chart to figure this out but it's not available anymore.
I'm hoping that I can run down the highway OK without winding up the flathead too much. Anybody know?