A buddy of mine has been thinking about changing his gears but was wondering if there was a ratio between 4.10's and 4.56's for an 05 4x4. I could've sworn there was 4.30's but I may wrong. Can anyone confirm this?

Thanks guys.

 

So far I have not been able to find a 4.:30 Ring and pinion for the 9.75 differential. I believe that you can find them for the 8.8 if that is what he has.

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Ford racing makes the 4:30 for the 9.75 but not for the reverse cut 8.8 needed for the front.

So it can only be done on a 2wd

They make it for the expeditions

 

Thanks for the info