Does anyone know if 4.30 gears are available for a 2006 FX4?

I have a 3.73 LS in there now with 33's and I'm thinking down the road I would regear (ie after my 3yr-36k warranty runs out). I was looking at the power band chart and it looks like the best gear ratio for me would be 4.30 but I never see anyone talk about that height. I also couldn't find anything on the search about it. It seems to go from 4.10 to 4.56.

 

Did I post this in the wrong forum or is it just that nobody knows the answer?

 

This has been brought up in the past. No one makes 4.30s but they do make 4.56 and 4.88, this is for the 9.75 rear. Try posting this in the 04-07 part of the forum, you probably will get a lot more hits.

 

thanks