What gearing do I need up front?

[Truck82]

Hey everybody!
I’ve got a 4:10 geared rear axle that I’m possibly going to be putting on a 4x4 build and was wondering what the best gears for the front axle would be? I will have around 37s for the tires.
Thanks for all the help!

 

[Ricko1966]

Hey everybody!
I’ve got a 4:10 geared rear axle that I’m possibly going to be putting on a 4x4 build and was wondering what the best gears for the front axle would be? I will have around 37s for the tires.
Thanks for all the help!

Front and rear have to match. Well they don't have to,but if you want to drive in 4wd they do.

 

[84_c10_GMC]

Hey everybody!
I’ve got a 4:10 geared rear axle that I’m possibly going to be putting on a 4x4 build and was wondering what the best gears for the front axle would be? I will have around 37s for the tires.
Thanks for all the help!

Need them to match or you’ll blow stuff up.

 

[Truck82]

That’s what made sense in my mind although I have heard of different gear ratios front and back that don’t match. I wasn’t sure if there was a trick to finding out the difference needed but I guess that’s not possible?

 

[Zelph]

Need them to match or you’ll blow stuff up.

Explosions like a Michael Bay movie!

 

[Zelph]

I wasn’t sure if there was a trick to finding out the difference needed but I guess that’s not possible?

If you were to run different diameter tires front to rear.
Say 31’s front and 37’s rear. You would go with 3.73 and 4.56 as general rule you multiply tire diameter by .12