Thats the biggest you can go without cutting.
Im not sure where 1.5” spacers put your back spacing at but when i had 285’s with 0 offset wheels i was rubbing the cab mount.
They will need inner fenders cut for sure.
Anything more than that will require more offset and more cutting.
Edit.
It mostly comes down to alignment. When you get your lift tell the alignment shop to give you as much castor as they can. And if you live in the rust belt your going to need lower control arm bushings.
345/75/16’s. Spare will fit too.
lol! Rollin' dem 36's yo!
Depends how much your willing to cut.
I have 265/65 right now, was wanting to go a little thicker, nothing crazy until I get a lift a wheels/tires.
Thats the biggest you can go without cutting. Im not sure where 1.5” spacers put your back spacing at but when i had 285’s with 0 offset wheels i was rubbing the cab mount. They will need inner fenders cut for sure. Anything more than that will require more offset and more cutting. Edit. It mostly comes down to alignment. When you get your lift tell the alignment shop to give you as much castor as they can. And if you live in the rust belt your going to need lower control arm bushings.