GeoGS

According to Tadge these are flow formed forged wheels. I too thought they 100 % cast, I have go with what he says. I know tires are always improving. Wondering if the A/S run flats would better on the OEM flow formed wheels. But most of the rims would already been beaten up by years and miles from the original tires.

joemessman

I am curious because I am considering a Z06. I have read quite a bit about the wheel issue. When was it determined run flats were the issue, and if you purchased non ZP tires it will solve the issue? I was just going to bite the bullet and buy wheels immediately after I purchase the car to bypass the OEM wheel hassle. Thanks.

Vette Ski

Boy, it's a @%&*+$# shame GM is getting away with selling so many wheels that are so easily damaged ! Where is the quality control testing? Like it was said by another forum member ( yaknuts ),I too have NEVER in my 55 years of driving damaged a wheel !
Rich

spinkick

I see forged wheels in my future. I've got the Mexican speedlines and that plus Michigan means cracked wheels..

tertiumquid

Perhaps you miss the point. When I said it's essentially a steel side with some rubber on it that is to say it essentially behaves like a steel side. The run-flats sidewalls are re-enforced with extra compounds to make it able to support the weight it has to carry when it's out of air but it reacts pretty close to what steel would do as far as the ability to transmit energy of an impact. Does that clarify it for you?

tertiumquid

Even if they're flow-forged as Tadge may claim, that's still the cheaper type of forged wheel and when they come from China or Mexico the guarantee of quality is about zero. The simple proof of the problem is in the high reported incidence of bends and cracks with so many cars. GM has to be aware of the problem but to admit it would be cost prohibitive. There's only two ways to make them solve the problem - class action lawsuit or everybody stops buying the cars. Neither has much chance of happening so the pain level for GM isn't high enough for them to make the change to a quality wheel. If there were deaths related to this it would completely change the situation and GM's response. It does seem incredible for them to continue to maintain there's no problem but history shows that if you deny something long enough, people will either give up trying to make you be honest or they'll start to believe the lie.

Walt White Coupe

"essentially a steel side with some rubber on it" Still wrong.

tertiumquid

Apparently you can't read or didn't read my reply. If your intention is to just engage in a semantics war I have no desire to play that game. The objective of the thread is to make people aware of the problems and resolutions in simple easy-to-understand terms. That includes metaphors to illustrate a point.

KAIJU

Did GM change vendors in the recent 2018/2019 builds or any upcoming builds? Can anyone confirm?

hungwang

After about 5 months since my last incident (page 5 of this thread), look like i got another cracked rim. It's the other rear wheel this time. Don't think i'll contact GM this time since that didn't really help when i tried before in October. Not sure what i'll do now. Forged rims? or maybe some Crays?

Vette Ski

How do you know it's cracked, you losing air? did you inspect it, cracked on the inside? all these questions
Thanks
Rich

hungwang

Losing air. acting just like my other wheel that had 3 cracks in it last October. i inspected to see if there is a nail in the tire but didn't see any. i am hoping that's all it is, but i am assuming it is a crack in the wheel. taking it to the shop in the morning to have a closer look.

KAIJU

I can't believe how common this problem is. Does anyone here NOT have any issues with their GS wheels? I'm hoping that they change vendors? Or have they done so already?

Vette Ski

If GM changes vendors that won't help us much in the respect that we already have the tainted wheels, except for the fact that it somewhat shows there was a problem ? But,they can say they changed because of other reasons !
Oh well,
Rich

roger55

It would be money better spent to lower the deductible on your regular coverage. If the dealer says it was due to a road hazard, have them give you that in writing. Proof for your insurance company that it's covered under your comprehensive coverage as damage.

If insurance companies started getting a bunch of claims on damaged wheels, you would think they would start questioning GM directly on why so many are getting damaged.

runner61627

Check out CW4L (a forum vendor) for forged wheels. Outstanding customer service and current great prices on Forgeline wheels. I just bought a set from Gerry for my GS

SLINGER

Throwing another cracked GS rim into the post. Michigan roads

KenHorse

Aside from the crack, what's with all the scrapes?

Vette Ski

Scuffs on the inside of the rim too.
Rich

Bob-G

If you don't see a crack(s), and it doesn't ride rough, how would you know if a rim is cracked? Would it lose air fast, or slow? My tires will lose a couple of pounds of pressure after sitting for a month or more in the garage. l'm guessing that is normal though.