F-250 / Super Duty / Diesel

Backspacing question

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Old Jul 26, 2008 | 02:16 PM
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hen23's Avatar
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Backspacing question

I am 90 percent sure I will be ordering ProComp 7005s in black, 17x9, with 305/65/17 BFG ATs. Quick question - This wheel is offered in 2 backspacings, 4.75 and 4.5. Which will come closest to being plane with the outside of the fender? Id rather have it stick out than be inside, but Im not looking for that tiny tire sticking way out look (not sure the technical term for that).
 
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Old Jul 26, 2008 | 05:18 PM
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my wheels are 17x8.5 with 5 inches of backspacing and the fronts are pretty close to being flush. the tires are 315-70-17 if that matters. i would say the 4.75 would be the better choice. if you click on the camera thingy i have a picture looking down the side of the truck showing how the wheels line up...
 
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Old Jul 26, 2008 | 06:37 PM
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Ah my fault wheels are only 17x8 with zero offset and 4.5 BS or 17x9 with 4.75 BS and a -6mm offset. So now the question is again which would stick out farther.
 
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Old Jul 26, 2008 | 08:03 PM
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the 17x8 with 4.5 will stick out as far as my wheels. i think the other wheels will stick out about 3\4 of an inch farther than the 17x8s....
 
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Old Jul 26, 2008 | 09:13 PM
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Awesome thanks for the help. I think Ill go with the 17x9.
 
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