As the tittle says guys, I am trying to decide between 4.10's and 4.56's. The truck is a 01 QC, v6, 5 speed, 4x4..Right now the truck has 265/70/16's and 3.55 rear gears. I would like to step it up to 265/75/16's, Im doing the gears anyways since the truck is gutless. I cruise at 70 which if im right, is right around 2500 rpms. Opinions? A dana trac lok is going in at the same time.