315-35-20-----9" wheel
 

I have a set of 20" X 9" wheels, does anyone know if a 315-35-20 tire will fit this wheel under my 08 Mustang GT? Thanks!

I forgot to mention the car has been lowered 1.5"

Nope.

I'll be more specific.. Will it fit? Sure. Will it be safe? No.

315 won't fit on a 9" wide wheel and 35% aspect ratio sounds pretty high for too for that width. In short no.

I would also say no considering most of us have 315s on a 10.5" wide rim.

Thanks, how about a 305-35 20------Anyone want to buy some 315-35-20's? LOL!

I would say 255 or 275

275 is probably the widest you'd want to go on a 9" rim.

You could do a 285 and it would be OK, but I wouldn't go any higher than that.

like everyone else said... no. 285 at the widest.