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Old Dec 30, 2012 | 05:43 PM
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back spacing

I have a friend in the military (overseas)..he asked a question and I don't know...His truck is 2002 F250 6" lift and 2" block and shackle....here is his qiestion:

joey

Its patrick i was wondering what our backspacing on our wheels needed to be so that we dont rub the leaf springs at full turn. I am going to buy <NOBR>wheels and tires</NOBR> when i get back from my deployment.
 
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Old Dec 30, 2012 | 06:00 PM
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The 99-04 Super Duties have 4" of back spacing.
 
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Old Dec 31, 2012 | 08:38 AM
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I thought our backspace was 4.25 on our trucks... I also though our stock wheels (the aluminum with the 8 holes) were a +6 offset. I've been researching wheels and tires for my truck as well and have found this calculators to be handy. www.rimsntires.com/specs.jsp. Please correct me if my backspace and offset numbers I gave above are wrong. Thanks.
Todd
 
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Old Jan 1, 2013 | 07:32 AM
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Hi guys i am the friend of Joey's i was looking at a set of wheels with a 4.5" backspacing but as we all know these trucks are not cheap to fix if something is done wrong. My question remains will these fit or do i need to move on to a different wheel
 
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Old Jan 1, 2013 | 08:42 AM
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I believe the factory wheels are 16x7 with 0 offset, making them 4" backspacing.
 
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Old Jan 1, 2013 | 05:01 PM
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If I'm reading right, you are wondering what offset on the wheel you need to not rub the leaf springs correct? What size tire are you planning to run? With 37x13.50 Toyo's I had to go with a -20 offset wheel to get them to not rub. If you are running a 12.50 tire, might not have to go to that extreme.
 
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Old Jan 1, 2013 | 05:05 PM
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Originally Posted by VegasFordSD
If I'm reading right, you are wondering what offset on the wheel you need to not rub the leaf springs correct? What size tire are you planning to run? With 37x13.50 Toyo's I had to go with a -20 offset wheel to get them to not rub. If you are running a 12.50 tire, might not have to go to that extreme.
That's really the question that needs to be asked, good point.

What are you wanting to run? I have -24 offset in a 16X10 wheel.
 
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Old Jan 1, 2013 | 06:44 PM
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That 16x10 with a -24 offset is a 4.5 backspace. Any problems with those at all BigAl?
 
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Old Jan 1, 2013 | 06:49 PM
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My front bumper is spaced, and inner fender tied back from tire rub with 34.7" tires and a 2.7" levelling kit, but clearance is fine, and no rub on leaf springs at full lock.
 
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Old Jan 2, 2013 | 06:52 AM
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same as al, but with 17x10" rims. Barely rub on leafs at full crank. Did crack my drivers inner fender, but this might have been due to my body mounts are work out

 
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Old Jan 2, 2013 | 01:01 PM
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Originally Posted by BigAlsPSD
That's really the question that needs to be asked, good point.

What are you wanting to run? I have -24 offset in a 16X10 wheel.
I was looking at the RBP 95R 20X10 -25 offset with a 38X13.5 write now i have weld wheels with 38X13.5 not sure on the backspacing and my wife cant pull these off and measure them to get exact. If you guys have any suggetions let me know they are much appreciated
 
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Old Jan 2, 2013 | 03:50 PM
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Originally Posted by Patrick.2001F250
I was looking at the RBP 95R 20X10 -25 offset with a 38X13.5 write now i have weld wheels with 38X13.5 not sure on the backspacing and my wife cant pull these off and measure them to get exact. If you guys have any suggetions let me know they are much appreciated
I would imagine a -25 offset would be fine. Like I said, I ran 37x13.50 toyos (they actually measure to a little over 14") with a -20 offset and have no noticeable rub at full lock. Fender plastics are a different story, mine are shredded and the fenders have been "massaged" into clearance by the tires themselves.

 
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Old Jun 8, 2013 | 10:37 AM
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Originally Posted by BigAlsPSD
My front bumper is spaced, and inner fender tied back from tire rub with 34.7" tires and a 2.7" levelling kit, but clearance is fine, and no rub on leaf springs at full lock.
i see that this is an old thread, how far did you have to space out the bumper? what did you use? washers or a plate? i want to run a 16x10 on the front of my dually
 
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Old Jun 10, 2013 | 02:05 PM
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Originally Posted by 73ferdf250highboy
i see that this is an old thread, how far did you have to space out the bumper? what did you use? washers or a plate? i want to run a 16x10 on the front of my dually
I just used a piece of 1/2" flat strap with 2 holes for the bolts, to space it about a 1/2" out.
 
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Old Jun 10, 2013 | 03:14 PM
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nice. that actually helps alot. im now trying to trade my level kit for a 6" kit and cash on my end.
 
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