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  • 1 Post By Hapnyny
  • 1 Post By Chicagowil
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Old 09-22-2023, 06:50 AM
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Default Front wheel offsets

So I purchased the shelby wheels for the classic roadster cobra, they are 5" offset on front, they seem to be in from the fender lip, its a 1991 kit, what are you all running for front offsets?
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Old 09-24-2023, 06:21 AM
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Same.
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Old 09-30-2023, 06:07 AM
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Have not bought mine yet, but will use 5" as my starting point. I have an offset calculator tool to get the widest tire all around while still keeping the tire/rim inside the lip. Its all about stance right?
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Old 09-30-2023, 08:35 AM
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Vintage wheels sells the choice for CR as:

Front- 2 x 15 x 8 with 5.0 backspace
Rear- 2 x 15 x 10 with 6.0 backspace

The wheels that came with the CR kits typically were 15" X 8" with 3.75" backspace.
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Old 09-30-2023, 12:25 PM
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Default Wheel offset

These are the wheels I have, I have 5" on front, with a 2" spacer it puts it where it should be
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Old 09-30-2023, 06:11 PM
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I’ve got Compomotive 16 x 8 on the front 3 3/4” backspace recommend by Don Scott
Fits great no more tire room on outside and inside has 1” or maybe more extra tire space.
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Old 09-30-2023, 06:13 PM
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Default Wheel offset

Left 5" backspacing with 2" spacer, right side stock 5" backspacing
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Old 10-02-2023, 12:02 PM
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Now the key is the allotment.

Last edited by Hapnyny; 10-02-2023 at 12:05 PM.. Reason: Attachment needed.
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Old 10-02-2023, 08:21 PM
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I am still wrestling with my choice for wheels.

Several years ago, I purchased a set of used 5 pin knock off Cobra II wheels. They came with the adapters. They are front- 7.5 X 15 & rear 9.5 X 15. When I finally got around to test fitting them, I discovered the fronts were a good fit, but the rear stuck out about almost 2"!

Now I have a choice of narrowing the rear end by 2" per side or selecting completely different wheels.

And, as I consider my choices, I keep in mind that tire choices in 15" are quickly reducing.

I have a pair of American Racing torq Thrust chrome 9.5 X 17 wheels. They look nice with the paint & chrome side pipes. But they are not the Halibrand style knock off wheels. And a new pair for the front are about $300 each. That is about the cost of narrowing the rear end with new axles.

My car, being a CR I, is not an exact replica by any means. It is more similar to an 80's AC Cobra from the UK that has been stretched. Wide body, full dash, small block 302 w/EFI, & T5.

If you Google "Sunburst wheels" on Holley's site, it shows a CR in green with the Sunburst 5 lug wheels. It would be my choice- but they seem to now be out of production.

Decisions, decisions!
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Old 10-03-2023, 12:46 AM
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Default wheel offset ET backspacing tool

check this site:

https://www.wheel-size.com/calc/
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