You will be better off with the 4.56's if you are going to go 37's.
As for running different gears front and rear. It won't hurt anything as long as you never shift into 4wd. Having the front and rear wheels turning at different ratios is a quick way to find your weak link in the drivetrain!
As for running different gears front and rear. It won't hurt anything as long as you never shift into 4wd. Having the front and rear wheels turning at different ratios is a quick way to find your weak link in the drivetrain!