Install 4:10 rear and 305/45/18 tires that are 28.7 dia and you will end up with about a 3:90 ratio. This is what I have and someone here on the forum told be how to figure it. 410-6% = what?? 3:85 close enough. I have NITTO DRs that hook up great.

 

+1 on the 4.10's. No problems whatsoever except for the fact that Lidio would not revise my tune for the 4.10's. He said he wouldn't help me because he does not recommend 4.10's......whatever......I got killer tunes from Doug and it's been perfect ever since.