Rally wheels.

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Jul 30, 2025 | 09:25 AM

540 vette

Thread Starter

Race Director

Joined: Jan 2002

Posts: 11,614

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From: No Where USA

Rally wheels.

I'm looking to change out my wheels. I have American racing on the car now but want to go back to Rally wheels. What should I be looking at for backspacing. I see 4 inch and 4,25 inch. I am looking at 15x8 all around. I might go with 15x7 for the front.

Jul 30, 2025 | 11:30 AM

sunflower 1972

Melting Slicks

Joined: Sep 2016

Posts: 2,192

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From: Wauconda IL

GM part number is 327708. 15 x 8 with 4.25 backspace. Stamped AZ.

Jul 30, 2025 | 03:21 PM

540 vette

Thread Starter

Race Director

Joined: Jan 2002

Posts: 11,614

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From: No Where USA

Quote:

Originally Posted by sunflower 1972

GM part number is 327708. 15 x 8 with 4.25 backspace. Stamped AZ.

Thanks. I'm probably going to go with aftermarket wheels.

Jul 30, 2025 | 03:57 PM

pspicci

Burning Brakes

Joined: Apr 2020

Posts: 783

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From: Western NY

the Stock ralley's on my 71 have 4" back space.
Pat

Jul 30, 2025 | 04:22 PM

CraigH

Melting Slicks

Joined: Apr 2010

Posts: 2,793

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From: Canberra Australia

2025 C3 of the Year Finalist - Modified

I also thought from everything I have seen for steel wheels it’s 8” wide 4” backspace which equates to -13mm offset.

Last edited by CraigH; Jul 30, 2025 at 04:29 PM.

Jul 30, 2025 | 04:41 PM

KS69Coupe

Drifting

Joined: Aug 2010

Posts: 1,771

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From: Charlotte Area North Carolina

The stock 15x8 rally wheels on my '69 are 4" backspacing FWIW.

Kevin

Jul 30, 2025 | 04:49 PM

ductape

Drifting

Joined: Mar 2003

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From: Charlestown IN

Cruise-In V Veteran

8" all the way around. Find a used GM set. That way rings and caps will fit and not fall off.

Jul 30, 2025 | 06:24 PM

540 vette

Thread Starter

Race Director

Joined: Jan 2002

Posts: 11,614

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From: No Where USA

Quote:

Originally Posted by ductape

8" all the way around. Find a used GM set. That way rings and caps will fit and not fall off.

Like I said, I am looking at aftermarket ones.

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Jul 30, 2025 | 06:24 PM

540 vette

Thread Starter

Race Director

Joined: Jan 2002

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From: No Where USA

Thanks for the help guys.

Jul 31, 2025 | 09:33 AM

#10

pspicci

Burning Brakes

Joined: Apr 2020

Posts: 783

Likes: 415

From: Western NY

Quote:

Originally Posted by 540 vette

Like I said, I am looking at aftermarket ones.

Last year I purchased 2 from either Jegs or Summit for my MT's. they were the corvette rallye's from wheel vintiques I believe . 15x8 w/4" backspace. they look and fit great. only thing I had to do is order some hub centric rings for them as the center hole is bigger than the stock hubs.
Pat

Jul 31, 2025 | 12:00 PM

#11

TX427C3

Melting Slicks

Joined: Oct 2003

Posts: 2,071

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From: Dallas TX

St. Jude Donor '06-'09,'22,'25

I'm not about 100% originality so I went with chrome rally wheels to do away with the trim rings. Don't have to worry about trim ring wobble or falling off, they look great and are simple to clean. Just an option....