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Author
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Topic: A question about Wheel Offset no one seems to have the answer to
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Black Stallion
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Member # 5114
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posted
 
 
It's a very straight forward question. What is the maximum wheel offset a 99+ Mustang GT can fit. I realize stock wheel offset is about 20ish, but what is the MAXIMUM offset of a wheel a 99+ GT model fit. I seemed to have asked this alot but absolutely no one has given me a straight forward numeric answer. Thanks..
Posts: 57 | From: San Jose | Registered: Dec 2004
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VNMKING
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Member # 480
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posted
Offset? Can't tell you a number, but I can tell you a way to figure it out. Cut a 25" circle out of wood that is like a wheel/tire combo. Jack up the rear and put stands on the diffy. remove wheel bolt up the wood, and bust out the tape. You can figure out maximum back spacing and maximum wheel width. Just remember your rear-ends "floats" in the corners. Unless you have a panhard bar you shouldn't be nearing the max anyway.
Well, hope that helped you some
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65’ Coupe
94’ Cobra
"VNMKING"
Posts: 1000 | From: Roseville, CA | Registered: Oct 2001
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166 Merlo
FELONY
MOTORSPORTS
Member # 1549
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posted
I think offset is relative. What you're looking for is backspacing.
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'89 - Boss Coupe
'70 - Drop Cutthang
'68 - Cougnut
'87 - 0166, Its real
Posts: 3954 | From: Thebay | Registered: Jul 2002
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racercosmo
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Member # 1864
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posted
Offset is dependant on wheel width. It is how far the mounting point is offset from the center of the wheel.
The 10.5" wheels I have are 27mm offset which makes them about 6 1/2" backspacing. They fit on a 94-98 with a slight bit of hammering. 99-2004 have 3/4" longer axles, so the should be able to fit a 7 1/4" backspace wheel.
I accept no liability with this post, use this information at your own risk.
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Beauty is in the eye of the beer holder
Posts: 973 | From: Marin | Registered: Sep 2002
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Black Stallion
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Member # 5114
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posted
Wow thanks alot. I decided not to get the 42 offset wheels after reading all this ![[patriot]](graemlins/patriot.gif)
Posts: 57 | From: San Jose | Registered: Dec 2004
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racercosmo
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Member # 1864
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posted
My first post was mostly about the rear. For the front, you probably won't want more than a 6" backspacing which is about 24-26mm offset on a 17x9" wheel.
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Beauty is in the eye of the beer holder
Posts: 973 | From: Marin | Registered: Sep 2002
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