4.10 for the 4.0 auto, that will keep good highway performance, good around town, without too crazy high highway rpm. It’ll be around 3300 at 75. If you go to 4.56 that becomes 3600. And any lower like 4.88 - 5.13 you start to hit 4000s on the highway.
I did 4.88 for 33’s but I have the AX15 5-speed manual. It will do about 3000 at 75 and should be great, but I have all those gears low down helping me get rolling. The auto needs to sacrifice higher highway rpm for more grunt down low since it only has 3 speeds.
