Tire help??

[Smokehouse]

Hey guys
I'm new to the forum here and have a noob question. I have a 2002 z71 tahoe everything stock and I just bought some eagle alloys series 014 wheels 20x9.5 with no offset. My question is what's the biggest size tire I can put on without any rubbing if I use 2 inch keys and spacers? Also I'm not opposed to a lil trimming if needed. Any help is appreciated guys thanks

---------- Post added at 08:49 PM ---------- Previous post was at 07:13 PM ----------

Sorry wheels are 20x9

 

[Big Buttons]

Probably around 285/75/20 Maybe a little bigger

 

[godoy]

285-55-20
305-50-20
305-55-20
275-60-20

 

[Smokehouse]

Thank ya fellas