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Old May 18, 2024 | 01:31 PM
  #1  
tru-blue 442's Avatar
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Old School Olds
 
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From: Marble Falls TX
Another tire thread.

I'm wanting to put new Cooper Cobras on some 15" SS-3 wheels I have. I would like to fill the wells up some but don't want any rubbing up front.
I also would like to keep the same size all the way around for convenience and for a better deal on a set of four. Thoughts on size?
These will be for the 70 W. It has 225-70-14's on it now. I will be painting the wheels argent grey to keep in line with what came with it in 70.
Thanks for you thoughts fellas.


Old May 18, 2024 | 02:42 PM
  #2  
Fun71's Avatar
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From: Phoenix, AZ
I have 245-60-15s all around with no issues. One time the tire shop made a mistake and put a 255-60-15 on the left front and it rubbed on turns. Brought it back and got a 245-60-15 and all was well. Others have reported 255-60-15s fit on front without rubbing, but I think that has a lot to do with ride height and suspension quality (mine was 20+ year old original springs). Rear was no problem with 255s due to the huge fender wells.

Back in the 70s - 80s my 70 Supreme had 225-70-15s on front and back with no issues.


Last edited by Fun71; May 18, 2024 at 04:45 PM.
Old May 18, 2024 | 04:07 PM
  #3  
Vintage Chief's Avatar
Running On Empty
 
Joined: Jul 2018
Posts: 26,064
From: Earth
1971 CS 350 cid
BFG P245/60R15 100S M+S front + back
New springs, new shocks >>> https://classicoldsmobile.com/forums...ension-141577/



Old May 18, 2024 | 05:10 PM
  #4  
Texas69's Avatar
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Posts: 339
From: Central Texas
Tires

Adam, I have I have 255-60-15 Cooper Cobras on all four corners with no fitment issues. These are on aftermarket American Racing 15"wheels.
Old May 18, 2024 | 07:24 PM
  #5  
tru-blue 442's Avatar
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Old School Olds
 
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Thanks for the comments guys. Looks like 245-60-15's it will be.
Old May 18, 2024 | 09:18 PM
  #6  
Fun71's Avatar
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Those should fit with no issues. But the rears will go up in smoke with throttle application.
Old May 19, 2024 | 05:56 AM
  #7  
tru-blue 442's Avatar
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Old School Olds
 
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From: Marble Falls TX
Originally Posted by Fun71
Those should fit with no issues. But the rears will go up in smoke with throttle application.
As they should.
Old Jun 14, 2024 | 05:36 PM
  #8  
tru-blue 442's Avatar
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Old School Olds
 
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From: Marble Falls TX
Originally Posted by tru-blue 442
I'm wanting to put new Cooper Cobras on some 15" SS-3 wheels I have. I would like to fill the wells up some but don't want any rubbing up front.
I also would like to keep the same size all the way around for convenience and for a better deal on a set of four. Thoughts on size?
These will be for the 70 W. It has 225-70-14's on it now. I will be painting the wheels argent grey to keep in line with what came with it in 70.
Thanks for you thoughts fellas.

Turned out nice with new lug nuts, NOS caps and new trim rings.

Old Jun 14, 2024 | 07:44 PM
  #9  
oldcutlass's Avatar
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From: Poteau, Ok
Looks good
Old Jun 15, 2024 | 05:41 AM
  #10  
tru-blue 442's Avatar
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Old School Olds
 
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From: Marble Falls TX
Thank you sir.
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