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Old 02-11-2010, 03:07 PM
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Wheel question for new lift

I got all my stuff in to bump up to 7" of lift on my truck. I'm selling my current wheels and tires and buying 37x13.50x20 Kumho KL71's and 20x10 Black KMC Monsters.

My current wheel is 18x9 with 4.5" backspacing. The new wheels are 20x10 with 4.5" of backspacing. How will the extra 1" of width on the rim (with same backspacing) effect how the tire sits? I'm assuming with the same backspacing it will just push it out a little more. Just want to make sure before I order the wheels.
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Old 02-11-2010, 03:44 PM
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It will sit the same actually....but be wider.

I know..DUH!!

But it will sit in the wheel well the same depth the added width is on the outside...you will have no issues with clearance at all.

I ran 20x10s with the 4.5 and the same 37x13.50s that you are with 6" and had TONS of clearance everywhere.
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Old 02-12-2010, 03:07 PM
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You're right...it will just push it out 1". The back-space is measured from the inside edge of the wheel to the mounting plate surface, so 4.5 BS is the same either way.

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