[guba_unus]

My rear tires are rubbing on the inside of the wheel well. It is on the bed rail so I cannot make anymore space without losing space in the bed of the truck. I've been looking into spacing the wheel out and saw these. I read the post "Are WHEEL SPACERS safe? and since no one could show how a spacer has failed, particularly in street use, I want to try and use these to fix my rubbing problem. I'm asking this for two reasons.
One, Does anyone know where to get an adapter with 7/16 thread studs instead of metric studs. I know I can press the studs in/out, but I'd rather get the right ones when I buy it.
Two, Instead of using these spacer/adapters, could I change to an 8 inch wheel. Right now my wheel is 7 inch with 3.75" of backspacing, but the tire makes the total backspacing 4.5". If I change to the larger wheel (15x8), would I have enough space between the tire and bed rail? I can get the same wheel (US wheel 75 series) with the same backspacing, so the extra inch would reduce the amount of tire sidewalll sticking out past the wheel.
The two attached pictures show the rubbing on the tire and the bed rail.

[scholman]

guba_unus,

You do not need those type spacers. All you need is a spacer that is about 1/4 of an inch thick and then reinstall the wheel assembly. The tire is not rubbing all that bad and you should have the extra thread on the wheel studs to handle the extra spacer.
The other thing you could do is have your wheels taken apart and then reweld the center back in with the set-back you need. This is very costly so I would do the spacer.

Scholman

[Centerline]

These are all you need. Available from Summit Racing for a wopping $12.88.

[guba_unus]

I saw the slip on spacer and thought about those too. I missed the ones from summit (didn't look because I'm kinda tired of paying nearly 10 bucks for handling) and saw these speedway spacers. But I disregarded them because they say you need 5/8" studs. What is different about the summit spacers?

Sorry to be a pain about something simple, I just want to be safe about this.

[Centerline]

The ones from Summit are Mr. Gasket units and are 7/16" thick. In most cases longer studs won't be required but I would check to see if you have that much (almost a half inch) available first.

I used those same spacers on my Pro-street car in order for the Cragar SS wheels to clear the disk brake calipers on the Ford 9". Worked like a champ.