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I am looking into getting some deep dish wheels, I have the cobra hub conversion. I need to know what backspacing and rim width will work the best with a 275 series tire in a 17 or 18 inch diameter wheel. I am willing to do some minor trimming if needed.
Thanks
 

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Discussion Starter #2
Nobody has any specs or measurements, I could go off of??
 

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Motorboatin' SOB, Headlight Cleaning Guru
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i test fitted a 94-04 dd stang wheel and it stuck out alot. i had a set of 05+ stang wheels on my bird and they were sunken in some in the rear. the 05+ wheels have higher offsets.
 

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I don't think you will be able to get deep wheels to work, even with skinny tires. Our offset is +39 or +42 (so the mounting flange is 42mm (1.65") outside of the centerline of the wheel).

If you go with an 8" wide wheel, with a dish of maybe 2.5" to the face of the center cap, and another 1" for flange thickness, that's 3.5" in from the outside edge. That puts the offset at only 0.5" (~13mm) outside of the centerline. So the wheels will stick out an extra 1.15" (29mm) from the stock Thunderbird wheels.

Now, if you are using 275mm wide tires, you will probably want 9" or even 10" wide rims. So that gives you another .5" to 1" that the wheels will stick out over stock. So your wheels would stick out 2" more than they do now. I don't think there's any way that will fit, even with rolling the fenders.

Your best bet is to find a wheel pattern you like in a high positive offset. I don't think any dish type wheel will work.
 

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I've got 3" of lip. Just get a style of wheel where the spokes curve back towards the car.
 
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