Hey Candido, manual or auto tranny? Is this for your Taco? Stock 4.56's I would assume auto.

I ran 33's w/4.56's for more than 4 years w/ manual tranny. Personal perference, but I like the lower RPM's on the highway. Now I'm running 35's w/4.88's. And the speedo is pretty close since MTR's are not a true 35" tire.

Lots of guys running both 15X8's and 15X10's with a 12.5" wide tire. Lots depends on tire pressure. 15X8's hold the bead better and are better for trail conditions. 15X10's are generally better for the highway with better tire wear.