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Old 10-19-2011, 06:59 PM   #1
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Putting a lift on 2011 wrangler 4 door

I am going to be putting a 4" lift on my 4 door wrangler sport. I am trying to run 35" tires on it. Will I be able to get up to hwy speeds like 60mph? This is a stock jeep, just got it! I know I will need to regear it at some point when I have the money. The wheels I got have a 5" backspace. Does anyone know how far that will stick out? Do I need spacers?

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Old 10-19-2011, 09:45 PM   #2
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I just finished my build. It's a 2011 4dr Rubicon. 4" lift & 35"s. wheel spacers, stock wheels.It drives like it did stock.
After the tires were installed I had it up to 80. No shakes, No DW, No vibes.
The thing is I forgot about the over size tires and the speedo being off. Plugged in the GPS and I was doing 85 not 80.
On back spaceing you should go with a 4.5" or 4" so you would not need spacers.


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Old 10-19-2011, 11:53 PM   #3
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Thanks for the info, I already purchased the wheels with 5" backspace. I'll have to get wheel spacers then.
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Old 10-20-2011, 12:47 AM   #4
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back spacing

I am completely new to jeep and lifts. Can you explain to me what back spacing is?
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Old 10-20-2011, 07:26 AM   #5
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Originally Posted by ryan.k.webber View Post
I am completely new to jeep and lifts. Can you explain to me what back spacing is?
Backspacing has nothing to do with lifts. It's the offset of the wheel to allow the tire to stay away from the body. Less backspacing pushes the tires out further. Stock BS is about 6" I believe. Someone can correct me on that. Therefore tires wider than stock would require less backspacing.
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Old 10-20-2011, 08:54 AM   #6
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5" bs may be fine depending on how wide his wheels are.....
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Old 10-21-2011, 05:29 AM   #7
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I'm running 35" tires on 18x9 rims with 5 in BS. I only rub at full turn to the right on the sway bar. You don't need extra back spacing. Here's a pic of what mine looks like. I was running stock 3.73s with the auto trans and could do 60 mph pretty easily. Hills were another story. Its much better with the 4.88s I am running now. I can even use my cruise control again.
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Old 10-21-2011, 09:50 AM   #8
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Thanks for the info, I already purchased the wheels with 5" backspace. I'll have to get wheel spacers then.
How wide are your wheels? At 9" wide, 5" bs is fine for a 12.5" tire.....

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