ty_ty13

iTrader: (42)

These are going to fit very well....RIGHT?

I F***in hope so b/c im biding on them
http://cgi.ebay.com/ebaymotors/ws/eB...category=43958

SJM Manufacturing Inc

iTrader: (5)

If you have an F-body offsets for the fronts on a 9.5 is pretty large, they will tuck a good bit...not a bad thing, the rears aren't bad either. There may be a little bit of fitment issues with how far the rims come in, but nothing that isn't workable.

The most important part is this rim is completely not cut right for the bolt pattern. F-bodies and Vettes will have a 5x4.75 backspace, not 5x120mm. They may seem to fit though the lugs will not seat correctly due to the 60deg taper.

Don't buy them, hopefully you're outbit...or at least get out of the sale due to the lister presenting it as a rim that is manufactured to work on an F-body.

Hope this helps,

Steve
Pres.

Xsta Z 28

iTrader: (2)

They will be fine. The 53 mm offset on the Z06 replicas is fairly new and a much better offset for our cars.

BTW stock offset on Camaro SS wheels is 56 mm on a 9" wide wheel.

JasonWW

iTrader: (2)

5x4.75 has nothing to do with backspacing. 5 is number of lugnuts and 4.75 is the diameter of a circle that intersects the center of the lugs. The vettes and f-bodies are the same.
I have never heard of the 60* taper before, but it should be the same on both cars.

Xsta Z 28

iTrader: (2)

120.65mm = 4.75"

ty_ty13

iTrader: (42)

many different answers here....so after all confusion is over...

Will they work or not?

JasonWW

iTrader: (2)

There's no confusion about the bolt circle. They will bolt up fine. The offset is the only variable. I believe they will fit just fine. I would ask someone like Todd at Discount Tire Direct.
https://ls1tech.com/forums/member.php?u=7691
I also found some info in a sticky thread.

Z06 Corvette Replicas:

17"x9.5" +50 to +56 mm no problems. 275/40R17.

18"x9.5" +50 to +56 mm 275/35R18 or 285/35R18.

18"x10.5" +50 to +53 mm. Higher than 53 mm will require the BFH mod. 285/35R18s thru 315/30R18. Over 295 may require rolling the fenderlip and will need the BFH.

SJM Manufacturing Inc

iTrader: (5)

I mis-typed my words...it is 5x4.75 bolt pattern not backspace and NO 5x120mm is NOT the same and will NOT bolt up the same.

The lug taper of the lugs (60 deg) will NOT seat correctly in the bolt pattern of that wheel.

I design rims...trust me, they are not the correct bolt pattern. They will bolt up, though NOT correctly. as the lugs will not seat correctly for the taper of the 5x120mm bolt pattern. Take my words with a grain of salt if you like, these are not just my professional opinions, they are facts.

The wheel may not seat correctly on the lugs, over time, the lugs will loosen and the wheel can/will fall off over time if not periodically checked.

Steve
Pres.

ty_ty13

iTrader: (42)

I ended up retracting my bid....because in past experience the metric system has never lined up correctly with the american standard system....

Thank you all very much for input and opinions

JasonWW

iTrader: (2)

TY, they are showing both the US and metric system for your convenience. That's all. I think maybe someone is confusing these with the BMW lug pattern which are very close but fractionally off. It is probably better off for you to retract your bid until your sure they will fit, though.

Many, many people are using the corvette and f-body rims interchangably with no problems. Why would GM screw themselves by making them differently?

Steve, if you are sure about this, can you please show the specifics of the 2 rims and how they are different?

SJM Manufacturing Inc

iTrader: (5)

The guy stated they are 5x120 bolt pattern, this is not an F-body or corvette pattern...those are both 5x4.75. Thinking about this more...this does seem odd if they are supposed to be an corvette replica rim for a vette.

5x120 is what the GTO's and possible the BMW lug pattern (I'm dont' work with BMW stuff so I can't give you a difinative answer on that).

You and others are correct, 5x4.75 and 5x120 are fractionally different. Even though the differences are small not knowing what their confidence level and standard deviation of setups are...shouldn't make one assume they will fit correctly.

To clarify why a 5x120mm and 5x4.75 setup differs...I'll try to explain...the taper that is cut into the wheel holes are meant to mate with the tapered lug. This will only occur if the bolt pattern is the same. The studs will center in the rims holes while at that point the lugs 60 deg taper will seat correctly in the mating 60 deg tapered rim seat hole.

If the bolt pattern is off, the studs will not be able to center into each taperd hole. This will cause the lugs not to seat into each tapered hole on the wheel. If the lug does pull inside of the taper, it will only do so by deforming the studs...obviously not a safe setup...even so, it will not seat flush.

the bolt pattern would need to be 120.65 as mentioned to be equivalent to 4.75 inches

SJM Manufacturing Inc

iTrader: (5)

you know, I just looked on ebay again...did he change the bolt pattern description???

It looks like they are now listed as 120.65mm... as I just mentioned, it did seem funny that if they were made to be take-offs for corvettes, they should be made to fit the car. Either he changed it, or I completely missed the .65 portion of it.

If I missed the .65, I sincerely appologize for creating confusion to you or others.

Steve

2MuchRiceMakesMeSick

Maybe that bolt pattern was for the 2003 camaro

2MuchRiceMakesMeSick

Oh yeah, I almost forgot to tell you. Im going to out bid you...






just kidding

dlandsvZ28

I recall you can't run different circumference wheels on f bodies like you can on vettes because of the brakes (or something to do with the brakes and abs).

https://ls1tech.com/forums/showthrea...+circumference

JasonWW

iTrader: (2)

I think this is the problem with using the BMW rims on F-bodies. They use a 120mm circle. (Metric bastards ) Anyway, when people use those on an F-body, they fit but the nuts are not seating flush, so they have a bad habit of loosening up. But that's BMW rims, not the ones we were talking about.

JasonWW

iTrader: (2)

Again, lots of people are running these wheels with no problems with the ABS or TCS.
Personnaly, I don't like the look of different height tires. The wheel well arches of the vette are sized for them, but not the f-body. It is a good price for those rims, though.

2MuchRiceMakesMeSick

I agree, if those are good quality rims they are a VERY good price

Black 98 T/A

iTrader: (3)

they will fit, are you a student at wku?

SJM Manufacturing Inc

iTrader: (5)

Even though the bidding was retracted, I'll try to clear this up since I may have made a bit of confusion for some. Not to mention future readers.

My initial responses stated fitment issues as I recalled seeing it on Ebay at 5x120mm NOT 120.65mm. I don't know if it was changed, or if I just mis-read the .65 at the end.

As stated previously, 120.65mm IS the same dimensionally as 4.75". This means the bolt pattern is correct for an F-body or Corvette.

Regarding ABS issues, rim size doesn't affect ABS. The issue is that the overall tire sizes are similar from front to rear.

Hope this clears things up.

Steve