tire sizes
 

i have a 1990 chevy shortbed that i lowered 3in in the front and 4in in the back and im needing new tires but don't know what sizes to get i want to go as wide as possible in the back and as narrow as possible in the front i have a 15inch weeel thats 8in wide if anyone has a picture i could look at or could help that would be awsome!!!!
thanks!