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 Post subject: Offset recommendations
PostPosted: Tue Dec 12, 2017 6:34 pm 
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Joined: Mon Feb 06, 2017 11:35 pm
Posts: 15
Location: Lenexa, KS
Hey guys,

I am looking at making some upgrades to my 2012 Caprice PPV and wanted to get some insight from others who have experience with the paths that I am looking to go down. I have looked through previous posts but have not found any with the wheel combinations that I am proposing.

I want to upgrade to a staggered set of 20" wheels, the fronts 20x9 and the rears 20x10 or 10.5. I am looking for feedback on the optimum offsets. I don't mind rolling the fenders but I would like to get the setup as close as possible before having to roll the fenders. Also, can someone provide the hub size? I see that the Camaro wheels have to be machined a bit to fit.

Thanks in advance.

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1986 Chevy Caprice (sedan)
1984 Chevy Caprice (coupe)
1996 Chevy Impala SS
1986 Monte Carlo SS
1984 Monte Carlo SS


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PostPosted: Mon Dec 18, 2017 10:12 am 
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Joined: Tue Mar 19, 2013 11:30 pm
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Location: Canton GA
maybe this will help get you started: http://www.g8board.com/forums/3569058-post9.html

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PostPosted: Sat Feb 10, 2018 2:00 pm 
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Joined: Fri Jul 21, 2017 11:27 am
Posts: 77
On a 20x10 rear. A offset of 45 -50 works best, you will have to roll the fenders. 50 would be safer

Not much benefit to going to a 10.5 rear cause a 295/30/20 is likely the biggest tire you an run anyways which fits perfect on a 10

your best bet is to search the G8 pages as their fitment is exactly the same.


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PostPosted: Wed Jul 04, 2018 5:03 am 
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Joined: Mon Jun 11, 2018 1:58 pm
Posts: 2
I'm a New guy with similar questions.

I just picked up my 2012 9c1 in Charlotte and drove it back to Austin. I'm looking at some 2016 SS wheels which are 8.5 " fronts and 9.5" rear rims. Tires seem to be 275/40/20 on the rear and I think they are 255/35/20 on the front rims.

I think they will fit on without any concerns except the speedometer until I change tires to s 265/35/20 in the rear. Will I have to modify the rear fenders?

Does anyone have any experience with these?


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PostPosted: Tue Jul 24, 2018 3:57 am 
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Joined: Mon Jan 23, 2017 8:11 pm
Posts: 54
I had the 2011 ss rims on mine with 275 35 20 on the rear and 245 35 20 on the front with no issues


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PostPosted: Tue Jul 24, 2018 1:47 pm 
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Joined: Mon Jun 11, 2018 1:58 pm
Posts: 2
The 2016 Camaro SS rims and tire fit fine. the right rear has rubbed gently once with a big dip. They look good, I think. The 275 35 20s would fit better but I don't plan to load up the back seat so I will wear out the tires before I change.


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