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Thread: 1964 Steel wheels 3.7 and 3.9 stamps

  1. 05-19-2023, 06:24 AM #1
    1970rsr
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    1964 Steel wheels 3.7 and 3.9 stamps

    What is the consensus on these wheels? Where they both used on 901 early 911 cars? Was the 3.7 for 356 and the 3.9 for 901/911?
    What do these numbers represent? Thanks in advance
    1965 911 Factory Paint to Sample Orange
    1967 911S Bahama Yellow
    1968 911 S Blood Orange
    1971 911S Gold Metallic Peter Gregg
    1974 Carrera RS Blue Metallic
    1990 RUF RCT Estonia's car
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  2. 05-19-2023, 07:33 AM #2
    jesseandersson
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    They represent the thickness and 3.7 was used on 356s, afaik some 901s had them too.
    Porsche 935 DP1 Zirkelbach
    930/10
    Resale red

    Porsche 911, 1971
    2.5L on Webers
    Silvermetallic
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  3. 05-19-2023, 12:16 PM #3
    Unobtanium-inc
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    The 64 and 65 356 Carrera's also had the 3.9 wheels. I have a Service Bulletin somewhere about it, I'll start digging.

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  4. 05-19-2023, 01:25 PM #4
    ejboyd5
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    See this: https://www.912bbs.org/forum/threads...-wheels.57376/
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