88FormulaKiller

iTrader: (8)

I have searched trust me, for a few hours now

i bought some outlaw 1's and i have the space around the hubs as most will know, anyone know the SPECIFIC size of hub centric rings i need for all 4 wheels? its a 91 firebird formula, should be the same i assume for all 82-92, front disc/rear drum. when i look it up by application on justforwheels.com, it just says set of 4 for 35.95 with no size, i assume they do that for the reason of me not going around and finding them cheaper somewhere else. Thanks.

88FormulaKiller

iTrader: (8)

so no one has ever run draglites, centerline, american racing mags/outlaws or any other kind of mag? i find that hard to believe...

84 z28

Forget the ring and just bolt the rim on.

88FormulaKiller

iTrader: (8)

it IS bolted on the car, but the fact that you dont want to use them doesnt mean i dont have to, better safe than sorry. question still remains unanswered.

84 z28

I not telling you what to do. The fact that this little plastic ring is safer then being lugcentric is funny. If safety was such a concern they would of made the oem rims hub centric. You want to know what rings to get find out what your hub size is and then look at the center bore dia on your new rims and do the math.

88FormulaKiller

iTrader: (8)

Doing the math on my part, fine, good point, but what you said right up there? ^ The OEM wheels are hub centric, and it IS a safety concern, the car now vibrates over 45 mph with the wheels balanced perfectly. im sure with enough vibration, pot holes, stop and go traffic, hard turning/cornering and the occasional burnout whether by mistake or intentional, those lugs are going to get weak, and if these rings will extend the life of those lugs even an extra 2000 miles, them your damn sure im gonna get some. so if anyone out there has installed them and can help me out since the rain and flooding has been forcing me inside the past 3 days, it would be greatly appreciated.

spitz74

I have a set of C6 wheels that I'm getting ready to order spacers for. So, I've been working on this hubcentric issue myself recently. From a few websites I've found, it looks like the 3rd gens have 70.3mm hubs (same as the 4th gen and C6), although I haven't taken my stock wheels off yet to confirm that. You can probably measure or research online to find out what size bore your wheels have and then find an insert that has the correct inner and outer diameters. The following websites might help.

www.wheelfire.com
www.motorsport-tech.com
www.ezaccessory.com

laiky

I'm measuring right now and i come up with 70.4 and 70.5mm. I have 2 1le hubs i cut for my brake upgrade that im measuring. I need adapters for my 4th gen wheels and i want to be sure i get a tight fit. I intend to order from motorsporttech and their site says 70.3mm so i'm a little worried.

//<86TA>\\

iTrader: (14)

the factory wheels are not hub-centric are they? pretty sure they are not.
for that matter, my truck wheels are not hubcentric either, and they see a lot more stress than a 3rd gens will.

as for the size, grad a micrometer and measure, its the only way your going to get it done, then you are probably going to have the rings machined to the exact size you want, since im sure nobody has them in stock in every possible size imaginable.

as for safety, there is no issue there. so long as you use the right lug nuts.

84 z28

No the factory wheels arent not hub centric. Long as you have the corrct lug nuts for the rim and enough lug nut/ wheel stud engaugement should be good to go.

88FormulaKiller

iTrader: (8)

I confirmed this a month ago by calling 5 local dealers and posted on NECF, 99% of Factory wheels for GM Cars are Hub Centric from 1967-2010.

84 z28

88FormulaKiller

iTrader: (8)

Dude are you serious?? why dont you make some phone calls yourself?? i have no reason to steer anyone in the wrong direction and i did the foot work already... are you going to just sit there and call BS on people doing the research and make no effort to check for yourself???

84 z28

I have a set of z28 rims in my garage. I walk 10 steps out the door and wa la my research is done.

88FormulaKiller

iTrader: (8)

Yeah and those factory Z28 rims are hub centric, just like any other 3rd gen FACTORY wheel.

84 z28

Not really. But you can keep debating the subject cause you think your right. Just for reference here are some posts for you.

Post#5

https://www.thirdgen.org/forums/susp...ss-wheels.html

Post#11
https://www.thirdgen.org/forums/auto...els-these.html

Post#4
https://www.thirdgen.org/forums/susp...s-spacers.html

88FormulaKiller

iTrader: (8)

THINK im Right???? I have verified this through GM DEALERSHIPS, people who have been dealing with our GM cars for YEARS, so I dont THINK this at all, which is why i called them in the first place becuase i didnt know so i asked, and these posts dont help the matter either, Thread link # 1 a member even states that if doesnt fit, clean up the rust and use WD40, you know why? Hub centric, it should just fit over the hub, Thread 2, i cant even believe your using this thread as an example, its a BMW wheel, obviously a BMW wheel's hub bore is a different size than GM's wheel bores and the other thread just has a member state that our wheels are lug centric and im sorry but your defense of all this are simply threads and or replies on this board, where is your factual information??

Look @ this website and read "Noise and Vibration Problems" near the bottom of the page:

http://www.wheelfire.com/ccontent/TechWheel.cfm

Now it states, "No hub centric rings on aftermarket wheels" as a possible Vibration

So if you think about it, when you buy aftermarket rims its recommended that hub centric rings are purchased to avoid stress to the studs and avoid vibration @ high speeds, Funny thing is, you can't buy hub centric rings for a factory wheel right? And not to mention every wheel tech site that talks about fitment and noise/vibration talks about using these hub centric rings with AFTERMARKET wheels.... why would GM manufacture ALL their wheels lug centric when hub centric is safer? Go and Call around a few places on your own, i have done my homework because i didnt KNOW the answer, im not just coming on here and saying what i THINK, now i have discussed it enough with people offline and online to KNOW the answer. Now prove me wrong with something other than someone else saying they aren't.

Really guy, Really... are you Serious??

84 z28

Whatever floats your boat. I dont care who you talk to or what you heard. I'm done with this thread and you, so do what you want. I got the rims in my garage and there not hub centric. So really guy,really are you serious.

84 z28

Funny cause your doing the same thing.

88FormulaKiller

iTrader: (8)

Then their not factory.

88FormulaKiller

iTrader: (8)

[QUOTE=84 z28;4559081][quote=88FormulaKiller;4559060] Now prove me wrong with something other than someone else saying they aren't.

Colonial West Chevrolet 1-978-342-8713 talk to Andy (tech), Tom (my father, been with GM for 28 years) Dave (Tech), Arthur (Tech)

Salvadore Chevrolet 1-866-228-0322 Joe (Parts)

TIRE RACK -- 888-353-5082 - ask for Cody (stated "most factory wheels from 1980 and up are hubcentric and almost all wheels we sell are hub centric.)

Why would a car manufacturer run the risk of breaking wheel studs running lug-centric wheels?

There ya go, no links... real people you can talk to yourself. btw, im not "gaining" anything from correcting you, only you will gain something, some more knowledge that isnt false.

Good Luck.

84 z28

[quote=88FormulaKiller;4559096][quote=84 z28;4559081]Well I just un-subscribed on this notification I just got in my email so this is the last time I will be posting on this thread. Your buddy cody at tire rack and your self are complete morons and he just helped me prove my point that you said starting in 1967 wheels are hub centric and he also says "most" wheels 1980 and up are hub centric.And if you think almost all aftermarket rims that tire rack sells are hub centric then you and cody are retarded. Most aftermarket wheels are lug centric to fit various models of cars and trucks. Go check out some welds,cragars,and even summit house brands on summits website and look and see if the hub centric and you will get a big fat NO.

88FormulaKiller

iTrader: (8)

[QUOTE=84 z28;4559170][quote=88FormulaKiller;4559096]
all i see and hear you saying is AFTERMARKET AFTERMARKET AFTERMARKET

and im discussing FACTORY FACTORY FACTORY

Cody stated they will try to sell Hub centric to every customer IF THEY CAN. (this is irrevelant anyway and i should have refrained from repeating it, he did state as i have heard 30 TIMES NOW that most (99%) of FACTORY wheels are Hub Centric wheels.

And yes, weld cragars etc are lug centric, i know this since i have some CenterLines on my formula right now as i type, and oh what do ya know, they have a 1/4 inch gap around the hub and rim that my FACTORY WHEELS didnt.

The current score on Hub centric FACTORY wheels @ my shop LKQ Vs. Lug Centric is:

Hubcentric: 28
Lug centric: 2

To end this thread, Factory 3rd Gen Camaro & Firebird wheels are Hub Centric.

92purplehaze

iTrader: (8)

i lol'd

87350IROC

iTrader: (2)

Sorry bud, they are not hub centric. Stock wheels are lug centric. And a properly torqued lug centric wheel will not break wheel studs.

Guest

Lug centric has nothing to do with why they might break.

88FormulaKiller

iTrader: (8)

Here is some reading material, and since its still a possibility of not convincing everyone who believes our cars have OEM FACTORY hub centric wheels, my father will provide me with a GM Tech phone # that they only give to Dealers so they can speak with the engineers/tech support about GM parts which i will provide and post here for ALL who want to make the call and hear it themselves.

Notice the variety of vehicles in the links, camaros, cadillac, Full size trucks etc, almost all GM OEM wheels are Hub Centric--it doesnt have to be a "tight-force-it-on" fit to be hub centric, thats being too literal. So now i ask this, if you hear it from a GM engineer instead of myself that these wheels are hub centric, how are you going to argue with the people who Built the ****ing car?

http://corvaircenter.com/phorum/read...,231453,233191

http://www.cadillacforum.com/forum/s...ead.php?t=3632

http://www.fullsizechevy.com/showthr...-wheels-needed

http://www.gmfullsize.com/forum/show...=139957&page=2

http://www.nastyz28.com/forum/showthread.php?p=1825812

http://www.racepa.com/content/index....e;topic=4623.0

http://www.gm-trucks.com/forums/inde...owtopic=108146

http://www.tahoeyukonforum.com/forum...ead.php?t=1462

http://www.expeditionportal.com/foru...ead.php?t=7632

laiky

We keep takling about hub vs lug centric. What is the criteria for Hub centric? What clearance qualifies as hub centric. I'm in the middle of a big brake upgrade and 4th gen wheel swap. My hubs that i made are the same exact raybestos PN but different diameters where the adapter will fit. If GM does make hubcentric (i'm not arguing mind you) the fit has to be pretty sloppy. I ordered adapters for the default GM hub diameter of 71.3mm?? if memory serves. My hubs are both bigger than this number. I anticipate some additional machining once i recieve my adapters. I figured i was better off in terms of safety and vibration by taking the time to get a good fit

Guest

The free space is at least 0.020", and varies from rim style to rim style and hub to hub.

Azrael91966669

the factory wheels are diffently hub centric i had been chaseing down a vibration problem for a few years now i didnt remember that it started about the same time i installed my c4 brake upgrade the rotor sit where the wheel would normaly and forced the wheels to be lug centric and of course there not ment for that and where off it took a on car wheel balancer to figure this out

88FormulaKiller

iTrader: (8)

pssstt... just incase you still thought OEM wheels are not hub centric for the last 6 years, because I do not like it when people spew that kind of blasphemy...

http://tires.about.com/od/understand...ric-wheels.htm

http://machinedesign.com/fasteners/w...centric-wheels

http://www.wheelhero.com/blog/hub-ce...entric-wheels/

Groot

That's hillarious. I get corrected all the time. I think you mean Voila. Hahahahahaha

thatsupnow

Old thread but totally seems like another classic overthinking thread. My stock wheels had no hub centric rings and neither do my American racing wheels. People like wasting time and burning money on the most trivial things I guess?