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Old 03-18-2025, 11:32 AM   #1
67ss&99ss
Andy
 
Join Date: Feb 2009
Location: Cleveland, GA
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Question 15x8 and 33x12.5s

I've got a question. I am working on a 1972 K/5 that has not been lifted. I have been doing some research prior posting this thread, and it seems in the offroad community, the combination of a 15x8 wheel and 33x12.5 tire works well both off road and on the road. I wanted to see if any of you were running this combination on your blazers and if so, do you have any fitment issues? The wheel I was looking at has a 4" backspacing. I will mostly drive this on road, but I will venture out on some mild trails from time to time as well.
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1967 Camaro SS 406|522hp/514ft lbs|M20 Muncie|3.73s|Posi
1969 CST/10 383|Aisin AR5 5 speed
1972 K5 LT1|Turbo 350 4x4
2005 Duramax 2500HD 4x4
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Old 03-18-2025, 02:15 PM   #2
truckster
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Re: 15x8 and 33x12.5s

I have GM 15x8 rally wheels and 33x12.5 BFG KO2 all terrain tires. They fit perfectly and there's no rubbing anywhere. That's on a 1972 K/5 sitting at stock height.
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1972 K/5 Blazer CST 4WD
1963 Corvair Monza Spyder Turbo convertible
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Old 03-18-2025, 04:41 PM   #3
CanadianNascar
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Re: 15x8 and 33x12.5s

15x8 33x10.5 no lift, 3 leaf springs in front.
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Old 03-18-2025, 04:43 PM   #4
67ss&99ss
Andy
 
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Location: Cleveland, GA
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Re: 15x8 and 33x12.5s

Quote:
Originally Posted by truckster View Post
I have GM 15x8 rally wheels and 33x12.5 BFG KO2 all terrain tires. They fit perfectly and there's no rubbing anywhere. That's on a 1972 K/5 sitting at stock height.
Thank you @Truckster for the information!
__________________
1967 Camaro SS 406|522hp/514ft lbs|M20 Muncie|3.73s|Posi
1969 CST/10 383|Aisin AR5 5 speed
1972 K5 LT1|Turbo 350 4x4
2005 Duramax 2500HD 4x4
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Old 03-18-2025, 04:43 PM   #5
67ss&99ss
Andy
 
Join Date: Feb 2009
Location: Cleveland, GA
Posts: 231
Re: 15x8 and 33x12.5s

Quote:
Originally Posted by CanadianNascar View Post
15x8 33x10.5 no lift, 3 leaf springs in front.
Thank you for sharing the pictures! I like the way that looks!
__________________
1967 Camaro SS 406|522hp/514ft lbs|M20 Muncie|3.73s|Posi
1969 CST/10 383|Aisin AR5 5 speed
1972 K5 LT1|Turbo 350 4x4
2005 Duramax 2500HD 4x4
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