Turbo 350C trans with what gear ratio ?

[rwhit57]

I have the 350C turbo with 2.73 gears. I'm wanting to go to lower gears, 3.08 or maybe 3.42. I'm wondering if any of you have a 350C and what gears came with yours or what's in it now. I drive my truck on the highway a lot and I don't want to go too low. It just seems like it's always falling on it's face. What do you guys recommend?

[Hazieview]

Originally Posted by rwhit57

I have the 350C turbo with 2.73 gears. I'm wanting to go to lower gears, 3.08 or maybe 3.42. I'm wondering if any of you have a 350C and what gears came with yours or what's in it now. I drive my truck on the highway a lot and I don't want to go too low. It just seems like it's always falling on it's face. What do you guys recommend?

What size tire are you running?

With your gear ratio running a 25" tire and a 31" tall tire can make all the difference in the world.

Look online for a speed/rpm calculator. Like this one.

The gear ratio of a 350th transmission is 2.52, 1.52, 1

Hope this helps!
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[rwhit57]

Thanks. I looked for one of those. That helps a lot. I'm thinking 3.42s might be a bit much for as much highway driving as I do, at least until I get a 700r4. I'm not sure the 3.08s are worth the change.