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Tire Size Again

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Old Dec 5, 2004 | 04:09 PM
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Default Tire Size Again

I'm sure it's been asked over and over but here goes again.
What is the widest tire that will fit on an '81 with stock aluminum wheels and stock suspension?
What is the largest that will fit the same car using 17" wheels?
I couldn't find a clear answer by using the search function.
Thanks for your help.

Last edited by es; Dec 5, 2004 at 06:45 PM. Reason: add sig
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Old Dec 5, 2004 | 06:46 PM
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must be somebody who knows
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Old Dec 5, 2004 | 06:48 PM
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Originally Posted by es
I'm sure it's been asked over and over but here goes again.
What is the widest tire that will fit on an '81 with stock aluminum wheels and stock suspension?
I'll take this one. 295/50/15
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Old Dec 5, 2004 | 07:02 PM
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On my 80 with 17" wheels 275/50/17 on the rear to stay in the fenders and 225/50/17 on the front to not rub tie rods at full turn.
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Old Dec 6, 2004 | 02:37 AM
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Originally Posted by es
I'm sure it's been asked over and over but here goes again.
...search?

Originally Posted by es
What is the widest tire that will fit on an '81 with stock aluminum wheels and stock suspension?
255/60R15 - You might see this size mentioned on a door post decal, in your owner's manual etc as the optional size that was installed on factory alloys. The factory had to trim the fiberglass to make these tires fit I believe.

Originally Posted by es
What is the largest that will fit the same car using 17" wheels?
The nominal dimensions of a 255/60R15 is 27.0" diameter and 775RPM. You can look up other dimensions online and compare to prospective 'upsize' tires for 17X8 rims.

I'm not familiar w/ the sizes mentioned above, however these sizes come dimensionally close to being dead on and offer true performance tire options:
P225 55
P245 50
P235 50
P235 50
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