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post #1 of 6 Old 08-09-2010, 05:42 PM Thread Starter
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wheel offset ?

Ok. I am putting a 4.5" icon lift on next week and I need help on backspacing. I ordered 35/1250/20 trail grapplers and kmc badlands 20x9 from discount today. I requested the +18 offset which is what was recommended on the wheelpro site. The store manager called me back and said that the guy at wheelpros was concerned there would be rubbing and convinced me to order the -12 instead. This is for a 2006 f250 btw. I would just like to get a second opinion because this offset/backspace thing is driving me nuts. thanks for the help. How much will this offset push the wheel out past the fender?
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post #2 of 6 Old 08-10-2010, 07:15 AM
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Thank you for the post bfd.

The +18 offset is pretty aggressive for such wide tires. The -12mm offset is a better choice for tire size 35x12.50-20. The 20x9 -12 (4.5" BS) will push out about 1.25" past the fenders. If you don't want them to stick out this much, you can run the Badland in size 20x9 +18 (5.71" BS) with tire size 295/65-20 and this will only stick out about .25" past the fenders (not including the tire). You may have to do some light trimming with both set-ups.

The Trail Grappler BTW is available in size 295/65-20 and per Nitto is 35.4" tall and 12.13" wide. The 35x12.50-20 Trail Grappler is 35.04" tall and 13.39" wide.

I hope this information helps.

-Matt

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post #3 of 6 Old 08-10-2010, 07:29 AM
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Quote:
Originally Posted by Discount Tire Direct View Post
Thank you for the post bfd.

The +18 offset is pretty aggressive for such wide tires. The -12mm offset is a better choice for tire size 35x12.50-20. The 20x9 -12 (4.5" BS) will push out about 1.25" past the fenders. If you don't want them to stick out this much, you can run the Badland in size 20x9 +18 (5.71" BS) with tire size 295/65-20 and this will only stick out about .25" past the fenders (not including the tire). You may have to do some light trimming with both set-ups.

The Trail Grappler BTW is available in size 295/65-20 and per Nitto is 35.4" tall and 12.13" wide. The 35x12.50-20 Trail Grappler is 35.04" tall and 13.39" wide.

I hope this information helps.

-Matt

Is that taking into consideration that he's putting a 4.5" lift on?

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post #4 of 6 Old 08-10-2010, 07:34 AM
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Absolutely.

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post #5 of 6 Old 08-10-2010, 07:46 AM
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Not to steal the thread, but what offset, backspacing, and size tire is needed to fit a 20x10 wheel on a leveled 99-04? I assume a 35" tire is the biggest I can go.
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post #6 of 6 Old 08-10-2010, 01:14 PM
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Offset and backspacing are one of the same. Check out this thread for more details...

Offset & Backspace - How Do They Relate?

AS for your application, a 10" wide wheel with 35x12.50's is aggressive for just a level. With a leveled truck, you have two options. You can either go wide (wide tire and low offset wheel) and be limited by how tall you go. Or you can go tall (high offset and tall tire) and be limited by how wide you can go. You can't do both without modifications.

My recommendation for what you are trying to do is run a 20x9 with around a -12mm offset with 295/65-20's.

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