I currently have an 86 toyota pickup with a 3 inch body lift and 33 x 12.50 BFGs. Under the hood is the small and incapable 4 cyl 22re. And the current gears in it are 4.10s. I'm looking for more power with regearing, but I also want to be able to do 75 mph on the express way. Someone please help me out. Main four wheeling is at sand at Silver Lake Sand Dunes. Should I run the 4.88 or run a 5.29? thanks.