I have 17"x8.5" wheels with a +18 mm offset on 285/70/17 bf Goodrich tires. As you can see they're tucked inside of the fender and I wanna get them like an inch outside of the fender. I'm gonna get the wheel spacers with the built on studs but can't decide what size I need to achieve the 1" outside the fender look. Can anyone help me out? Maybe 1.5" or 2"?

 

Put a level in the edge of the fender then measure how far inside the fender they are. After you have that distance add it to the distance you want them to stick out. That the thickness you need.
Or convert 18mm to inches and add that amount to the distance you want them to stick out.

 

1.5" will be perfect and you will not need to trim lug studs. Ensure you buy hub centric.

 

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