[Carolina_Canyon]

Time for some new skins on the stock '05 GMC Canyon SLE 4WD.
Around town I've believe I've seen some Colorado/Canyons with stock suspension running
a little larger tire than stock. Anybody run something bigger 31x10.5x15? I don't want to rub stuff when turning or hitting big bumps.

 

[08Canyon]

With no lift, just stick with 31's. Otherwise you can gain an inch by changing the wheel size to 16" wheels.
I don't really feel like going into much more detail.

 

[colbyjohnson1994]

Cranking t bars will fit you 33's, but it will be a ruff as hell ride until you do a bj flip. Some members end up needing to trim body mounts to fit larger than 31's, depends on the vehicle. There is an entire thread dedicated to this.

 

[4x4x4doors]

With no lift, just stick with 31's. Otherwise you can gain an inch by changing the wheel size to 16" wheels.
I don't really feel like going into much more detail.

No. A 31 inch tire on a 15 inch wheel is 31 inches. A 31 inch tire on a 16 inch wheel is also 31 inches.