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- The 1969 - 1972 Blazers and Jimmys Message Board (https://67-72chevytrucks.com/vboard/forumdisplay.php?f=36)

- - 15x8 and 33x12.5s (https://67-72chevytrucks.com/vboard/showthread.php?t=857800)

67ss&99ss

03-18-2025 11:32 AM

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.

truckster

03-18-2025 02:15 PM

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.

CanadianNascar

03-18-2025 04:41 PM

Re: 15x8 and 33x12.5s

2 Attachment(s)

15x8 33x10.5 no lift, 3 leaf springs in front.

67ss&99ss

03-18-2025 04:43 PM

Re: 15x8 and 33x12.5s

Quote:

Originally Posted by truckster (Post 9375702)

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!

67ss&99ss

03-18-2025 04:43 PM

Re: 15x8 and 33x12.5s

Quote:

Originally Posted by CanadianNascar (Post 9375734)

15x8 33x10.5 no lift, 3 leaf springs in front.

Thank you for sharing the pictures! I like the way that looks!

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