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Gear ratio for 38'' tires.

7K views 3 replies 4 participants last post by  florida 6.0 
#1 ·
Hey guys, I have an 02 F250 psd. 8'' lift runing 38x15.50x20R tires.
As of right now I have 3.73 gears. Gonna be rebuilding the axles this winter and was wondering what ya'll thought of a good gear ratio to run with that size tire? I'm thinking 4.56 gears with front and rear air lockers would be a nice setup.
What do you think?

Thanks,
Matt
 
#2 ·
A few people have suggested 4.30 gears to keep it highway friendly. If you dont plan on doing alot of highway driving I'd go with 4.56 for alot more torque and power off the line, or if you tow alot....... Comes down to what you plan on using your truck for.
 
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