Wide rear tires help!!!!!

[Jjblur2003]

Yo guys, I have a 2014 Sierra Z71.

Trying to figure out the widest 33 inch tire I can put in the rear with aftermarket wheels. I dont want them to stick out past the fenders more than an inch. Would a 325 be doable with the right offset? Factory height. 600 whp. Need traction

[IronVilkas]

https://www.wheel-size.com/calc/?wheel1=285-75-17X8ET0&wheel2=275-70-17X7.5ET24&fcl=1.96875in&wcl=1.1875in&scl=1.96875in&sr=0.9375in

 

use this calculator. Measure the current gap from your tires to fender and you can enter it into the tool and then you can play with offset and tire size to get a flush fit.