superj
Well-Known Member
- First Name
- Jason
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- Feb 8, 2025
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- 3,481
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- Corpus christi texas
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- 2004 ford ranger, 2024 ford ranger
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- Aircraft examiner
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- #1
I just wanted to show some pics for those who don't really know what the numbers mean when people talk about wheel offsets.
Our stock trucks are running +55 on the non raptor models. That means the wheel hub is towards the outside face of the wheel 55mm from center. So if you have an 8" wheel, you move 55mm towards the side.you can see and that is where the mounting face sits.
This pic is from a stock 18" xlt wheel showing the mounting face at the end of the tspe measure.
That face sits against the truck hub face. I don't have a pic of that surface because i missed taking that pic, oddly. That face is where the black spacer is sitting in this picture.
So when you buy new wheels, you meed to know your stock wheel offset and bore size, which is referred to as center bore diameter, centrr bore, or bore, as seen in the screen shot below.
The above screen shot also has your bolt pattern, another needed piece of info when buying wheels.
Our trucks, stock, run a 6x139.7 bolt pattern. People will also call it 6x5.5 but that is also what they call thr f150 size, which is 6x139 so make sure your possible wheels are 6x137.9.
So you now know that your truck comes with 6x137.9 bolt pattern and 55mm offset. Those are the main things that will keep your wheels fitting.
Next, is wheel diameter, which can be 17, 18, 19, 20, 21, etc. That is how big the wheel is from lip to lip, diagonally across the face. Our trucks come with 17 or 18 from the factory.
So now we are to comparison pics
25565/18 on the left and 265/65/17 on the right.
This is -10mm offset on an 8.5" wheel.
This 55mm on a stock width wheel. i believe 7.5 inch wide.
Stock wheel sticking out with a 25mm spacer. So only 30mm in reality (55-25).
-10mm sticking out
Our stock trucks are running +55 on the non raptor models. That means the wheel hub is towards the outside face of the wheel 55mm from center. So if you have an 8" wheel, you move 55mm towards the side.you can see and that is where the mounting face sits.
This pic is from a stock 18" xlt wheel showing the mounting face at the end of the tspe measure.
That face sits against the truck hub face. I don't have a pic of that surface because i missed taking that pic, oddly. That face is where the black spacer is sitting in this picture.
So when you buy new wheels, you meed to know your stock wheel offset and bore size, which is referred to as center bore diameter, centrr bore, or bore, as seen in the screen shot below.
The above screen shot also has your bolt pattern, another needed piece of info when buying wheels.
Our trucks, stock, run a 6x139.7 bolt pattern. People will also call it 6x5.5 but that is also what they call thr f150 size, which is 6x139 so make sure your possible wheels are 6x137.9.
So you now know that your truck comes with 6x137.9 bolt pattern and 55mm offset. Those are the main things that will keep your wheels fitting.
Next, is wheel diameter, which can be 17, 18, 19, 20, 21, etc. That is how big the wheel is from lip to lip, diagonally across the face. Our trucks come with 17 or 18 from the factory.
So now we are to comparison pics
25565/18 on the left and 265/65/17 on the right.
This is -10mm offset on an 8.5" wheel.
This 55mm on a stock width wheel. i believe 7.5 inch wide.
Stock wheel sticking out with a 25mm spacer. So only 30mm in reality (55-25).
-10mm sticking out
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