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C4 Tire woes.

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Old Dec 7, 2024 | 02:44 PM
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Default C4 Tire woes.

I am needing to replace the tires on my ‘85 C4. The stock tire size is 255/50R-16. This size is almost impossible to find, except Toyo drag tires and $500/each Michelin.

Just wondering what other C4 owners have done for new tires. I have thought about putting 245s or 265s on the car, since they are more available in A/S tires. The other option I have thought of is switching to a 17 inch wheel,
because 255/50R-17 are a much more available tire size. Kind of hate to get rid of stock ‘85 wheels. Any input would help. Thanks.
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Old Dec 7, 2024 | 02:50 PM
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We should make a sticky out of this subject.

If your car is NOT a Z51 and has 8.5" wheels you can go down to a 245.

Unfortunately, the Z51 has 9.5" rear wheels and 245s are not recommended. You could also look to find a pair of 8.5" wheels to substitute for the larger ones.
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Old Dec 7, 2024 | 02:55 PM
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Originally Posted by Kilobuck84
We should make a sticky out of this subject.

If your car is NOT a Z51 and has 8.5" wheels you can go down to a 245.

Unfortunately, the Z51 has 9.5" rear wheels and 245s are not recommended. You could also look to find a pair of 8.5" wheels to substitute for the larger ones.
It is a base C4, not Z51. Would 265s be ill advised? Local Costco refuses to install 245 because they said the car would exceed the “load index” of the OEM size.
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Old Dec 7, 2024 | 03:00 PM
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Originally Posted by Kilobuck84
We should make a sticky out of this subject.

If your car is NOT a Z51 and has 8.5" wheels you can go down to a 245.

Unfortunately, the Z51 has 9.5" rear wheels and 245s are not recommended. You could also look to find a pair of 8.5" wheels to substitute for the larger ones.
It is a base C4, not Z51. Would 265s be ill advised? Local Costco refuses to install 245 because they said the car would exceed the “load index” of the OEM size.
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Old Dec 7, 2024 | 04:36 PM
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I don't believe there is a 265/50R16.

Load rating of the 245 is 1600 lbs/tire. I would think you'd be hard pressed to get the car up to 6400 lbs and still be able to move it. So I'm not sure what they're on about.

If you look them up on Tirerack.com you'll find the specs on the ratings and sizes.
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Old Dec 7, 2024 | 06:28 PM
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If you are going with 17’s I would suggest 275/40/ZR17
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Old Dec 7, 2024 | 06:36 PM
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I’m running these 245/50 -16 on my Z51 rims. NO issues whatsoever.. they handle well, look good and are about $100 each at Discount tire.

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Old Dec 7, 2024 | 07:04 PM
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I put 245s on Z51 wheels. Its fine. Its what the car had on it when I got it, I put 255s on it and now it has 245s again. Its true the manufacturers dont recommend it, but it works fine and honestly I like these tires better than the 255 sport comps or whatever they were.
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Old Dec 8, 2024 | 04:05 PM
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Originally Posted by flyguy210
It is a base C4, not Z51. Would 265s be ill advised? Local Costco refuses to install 245 because they said the car would exceed the “load index” of the OEM size.

costco is full of beans.

order the 245’s and book an mount and balance at an alternative shop.
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Old Dec 8, 2024 | 05:56 PM
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Originally Posted by VikingTrad3r
costco is full of beans.

order the 245’s and book an mount and balance at an alternative shop.
Yep, some of these tire shops are a bit too big on themselves. About two years ago, Canadian Tire had a dirty sale on tires for my Escape plus triple points. I only needed two as the backs were fine. They wouldn't install two because the truck was "all wheel drive". I went out in the lot and removed the two fronts, rolled them in and told them to give me two with a balance. Problem solved.
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Old Dec 9, 2024 | 11:28 PM
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I went with Toyo RA1 last July as they were available in the 255/50R16 size. I have an '84 with Z51 so 8.5" rims in front and 9.5" rear. I've put over 11K miles since then and still have lots of tread left, the treadwear indicators look pretty much the same as they did new. No spirited driving as far as Mrs. Boomer is aware of. I have NOT driven in the rain with them but they are reviewed elsewhere as being pretty good in the wet.






""
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Old Nov 30, 2025 | 04:28 AM
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jaggedice84 - great message to BF Goodrich.
I suspect the percentage of owners prepared to buy a set would be quite high as many of them would be reaching the age limit now.
They could even do a single production run - if they made it known that this is a single run with priority on owners that prepaid a deposit I suspect the percentage take-up would be even higher.
I feel most people would even be prepared to pay quite a lot more than the historical price due to the outrageous cost of other options that are available.

Anyway, I have sent a message to BF Goodrich too - perhaps if they get enough feedback they might consider it!
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Old Dec 2, 2025 | 11:00 PM
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I will sell a pair of 245's 16" real cheap. as they are old. $25 each, plus shipping.
Plenty of tread left, but old.
Kumho's
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Old Dec 3, 2025 | 08:43 AM
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Last time I had to get tires I put these on
Amazon Amazon

They really dont look weird at all and theyre better than the BFG 255s ever were anyways.
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