3.70:1 gears questionssssssssss

Clutch, transmission, rear axle

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71PA_Highboy
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re: 3.70:1 gears questionssssssssss

Post by 71PA_Highboy »

Ryan,

Again, gear ratio is going to be determined by the RPM range of the engine (mainly camshaft spec), and the size of the tires.

Try here:
http://www.westerndiff.com/rpm.html

That will get you in the right area...

If you were running a 4BT, ZF5 and 33" tires you would need 3.55 gears

If you were running a 4BT, NP435 and 30" tires you would need 2.45 gears.

If you were running a 360, NP435 and 30" tires you would need 3.25 gears

If you were running a 460, ZF5 and 33" tires you would need 5.13 gears.

Run the calcs yourself, play with the variables, and then decide what YOU want to live with.

Good Luck!

Eric
Got Ford?
2 EarlyBroncos (68,69)
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