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Old 09-29-2009, 05:38 PM
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Alright I need a bit of help.. For an 18x10.5" wheel with a 56mm offset.. will I need a small spacer? If so what size spacer would be good? And I would need shank lug nuts rather than longer studs, correct? How do 305's sound?

Thank you!
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Old 09-29-2009, 06:57 PM
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Originally Posted by Engine_HP
im 99% think that it will fit but i want to make sure.

1, will 285/35/18 fit 18x9.5 wheel ?


thanks
Originally Posted by Xsta Z 28
^ Yes that will fit fine.
will i need spacers/adaptors to put 18x9.5 c5 OEM (factory wheels) with 285/35 in my 99 camaro rear.
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Old 09-29-2009, 07:22 PM
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Originally Posted by 98 WS6
Alright I need a bit of help.. For an 18x10.5" wheel with a 56mm offset.. will I need a small spacer? If so what size spacer would be good? And I would need shank lug nuts rather than longer studs, correct? How do 305's sound?

Thank you!
Well you don't HAVE to run a spacer for that wheel . . . granted it runs a bit tucked in . . .

A 1/4" spacer can be run with stock lug studs, but you can run as fat as a 16 mm thick spacer, and the wheel will still fit. Definite need stronger stids for that thickness.

Lug style is 100% dictated by the wheel . . . typically a drag wheel uses a shank style lug, most other wheels use and acorn style.

295's through 315's will fit.
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Old 09-29-2009, 07:29 PM
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Thanks Xsta! Appreciate it.
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Old 09-29-2009, 07:59 PM
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Originally Posted by Engine_HP
will i need spacers/adaptors to put 18x9.5 c5 OEM (factory wheels) with 285/35 in my 99 camaro rear.
Can't answer that without you telling me the offset . . .
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Old 09-30-2009, 12:55 AM
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One more question.. someone just told me they were running spacers with shank lugs at the track, and they lost a wheel. If I have a 1/4" spacer and shank lugs.. do I have to worry about this? Kinda scary. lol
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Old 09-30-2009, 08:35 AM
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Originally Posted by 98 WS6
One more question.. someone just told me they were running spacers with shank lugs at the track, and they lost a wheel. If I have a 1/4" spacer and shank lugs.. do I have to worry about this? Kinda scary. lol
Well, anything is possible . . . wheels fall off w/o spacers . . . granted yes a spacer can induce more forces to the lug shafts . . .

I can only assume that if the person was using shank lugs, he was using drag wheels . . . I would NEVER use a spacer in a racing application . . . street I have, prefer not to though . . .
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Old 10-04-2009, 06:08 PM
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Originally Posted by Engine_HP
im 99% think that it will fit but i want to make sure.

1, will 285/35/18 fit 18x9.5 wheel ?


thanks


Originally Posted by Xsta Z 28
^ Yes that will fit fine.

Originally Posted by Engine_HP
will i need spacers/adaptors to put 18x9.5 c5 OEM (factory wheels) with 285/35 in my 99 camaro rear.

Originally Posted by Xsta Z 28
Can't answer that without you telling me the offset . . .


ok offset is 65mm (BS 7.8")
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Old 10-05-2009, 08:15 AM
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Originally Posted by Engine_HP
ok offset is 65mm (BS 7.8")
That will need a spacer with longer/stronger studs . . .

Anywhere between 9 mm and 26 mm . . .
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Old 10-11-2009, 10:32 AM
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Default Help with tire size

I have a 1999 T/A. What tire size do you all recommend if I plan to get some Summit Stars? 15x4 in fron and 15x8 or 15x10 in rear. What wheel would fit better in the rear? Thanks for the advice.
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Old 10-12-2009, 09:48 AM
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Originally Posted by rgonzalezjr73
I have a 1999 T/A. What tire size do you all recommend if I plan to get some Summit Stars? 15x4 in fron and 15x8 or 15x10 in rear. What wheel would fit better in the rear? Thanks for the advice.
Search the forum . . . if you read any part of this thread, I don't have any first hand knowledge of drag wheels and tires. Sorry.
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Old 11-06-2009, 02:41 PM
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Hey Xsta,

I browsed through this thread and learned alot, so thanks. I just wanted to ask you about my own application because I didn't see this exact question earlier in the thread. My question is this:

I just bought a 2000 WS6 Trans am. I bought the car lowered and the former owner couldn't tell me how much it was dropped. I'm guessing 1.5 inches. Well, now I'm looking at some OE wheels deep dish C5's for it. The rears I want are 18x10.5 with a 56mm offset. According to what I read so far on this thread, I understand that I'm going to need a 1/4th spacer and possibly a little BFH. Is this still correct given that the car is lowered? Also, is a spacer all that safe on the highway?

Thanks,
Travis
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Old 11-10-2009, 02:31 PM
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Xsta-Z,
I have a few questions for you on the wheel offset. Here are the specs Im looking into:
CCW rims with 18x9 in the front - 50 mm offset with STOCK springs. Yea I know, stock springs but I like my car to ride nice and not too hard on the bumps we have around here. The back is the real question. Rim size is 18x12. Im going to have my car mini-tubbed and a MWC 9" rear put in that is 3" (76.2mm) shorter on the width on both sides. Seeing how the offset on the back of a stock car is 56mm, the new offset would be (negative) -20.2mm. Or -21mm to be good. Would that work? Or would making the rear 2" (50.8mm) shorter on the width and having a 0mm offset work better? Plus I was wondering what type of tire would be good to fit those size of rims? Thanks for the help.

Jason

Last edited by Jwright41; 11-10-2009 at 02:43 PM. Reason: Forgot some information...
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Old 11-19-2009, 09:17 PM
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Hey guys, I was wondering if anyone knew the offset on a set of stock 16x8in rims you would find on a 98-02 trans am.
Thanks.
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