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Old December 26th, 2009, 02:31 AM   #1
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Default Torque Thrust II & Backspacing?

What's peoples preferred backspacing when running these? I'm think of picking up a set and had a set on my old LS1 but forgot the backspacing I was running. Thinking 4-5" in to clear 11" wheels with 315's in the back. Will run a 9.5" with 275's in the front I believe.
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Old February 2nd, 2010, 11:07 AM   #2
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ive got 7.5 spacing on my 9.5 275 all around. not sure the correct spacing on the 11'. are you lowered at all??
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Old February 2nd, 2010, 06:50 PM   #3
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ive got 7.5 spacing on my 9.5 275 all around. not sure the correct spacing on the 11'. are you lowered at all??
nope but will be... just trying to get idea's
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Old February 8th, 2010, 09:21 PM   #4
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Well, if you only have 4-5in of backspacing on your 17x11s there will be enough tire sticking out for gerbils to use as a treadmil.

I would go with at least what i have, which is 7.5-8 on my 9.5's.
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Old February 12th, 2010, 07:42 PM   #5
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I'm going to try to do a little research this weekend to see what it's supposed to be, because i have no idea myself. I'll probably just go out and measure mine and see where it's at on my car. I'm running the same setup that you want to run.

I will tell you this, if you lower your car, you'll have to roll your rear quarters to run an 11" rim out back. That is a fact
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Old February 15th, 2010, 10:57 PM   #6
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I will tell you this, if you lower your car, you'll have to roll your rear quarters to run an 11" rim out back. That is a fact
yep... this is true. did it for procautionary measures although it didn't seem like it was entirely neccessary ...would never want a tire cut up from a dumb minded mistake
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Old February 17th, 2010, 06:07 PM   #7
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oh i know firsthand. i didn't roll mine at first and the result wasn't pretty
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Old March 8th, 2010, 01:34 AM   #8
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I'm going to try to do a little research this weekend to see what it's supposed to be, because i have no idea myself. I'll probably just go out and measure mine and see where it's at on my car. I'm running the same setup that you want to run.

I will tell you this, if you lower your car, you'll have to roll your rear quarters to run an 11" rim out back. That is a fact
Unless you have a Trans Am. The Firebirds have a wider fender well than the Camaros.

There is another "LS1/F-Body" website out there that has all of the wheel and tire information you are seeking. May I suggest you pay a visit to the website.

Check that, I see some of the information has migrated to this site. Wheel & Tire FAQ - General Topics
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Old March 8th, 2010, 04:24 PM   #9
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I have 17's but dont remember what my backspacing was, I'll check it later
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Old March 8th, 2010, 09:11 PM   #10
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Unless you have a Trans Am. The Firebirds have a wider fender well than the Camaros.
I wasn't aware of that, thanks for the info
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