Gears for 4.0 5sp automatic

[musicstation]

Hi , my truck -
Ranger
1997
4.0L
5 sp auto
4wd
3.73
32" tires

What gear ratio you recommend .I use the truck most of the time in the street and some times in mud .
Thanks

 

[Sunk]

4.10

If you don't do much highway driving, or you think you might move up to 33s in the future, then go 4.56 since 3.73 to 4.10 isn't a big jump.