1970 L78/Z28 shock Info & 1971?

Discussion in 'Original Drivetrain Topic' started by 70 SS/L78, Jan 11, 2019.

  1. 70 SS/L78

    70 SS/L78 Veteran Member Lifetime Gold Member

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    May 5, 2005
    Rockford, MN
    Here's some info I have for those interested from a set of NOS shocks I purchased about 10 years ago. Technically the rear 'EH' shocks are correct for Z28 only but the front shocks were used on both L78 & Z28.
    The 2 letter shock code data is gathered from a few buildsheet pictures that I've saved. This can be updated or corrected as needed.

    FRONT SHOCKS
    1970/71 Z28 and L78 - Part number on shock 3192132, 2 letter code on sticker = 'BJ' Date code in pic 346-69 = 346th day of 1969 or Dec. 12, 1969
    1970 & 71? Small block with F41 option, 2 letter code on shock = 'BH'

    front shock stickers 'BJ'.JPG

    front shock pn 3192132.JPG

    front shock date.JPG



    REAR SHOCKS
    1970/71 Z28 - Part number on shock 3192282, 2 letter code on sticker = 'EH' The date code on these shocks is mid 1970 but don't have pic of the date.

    1970 & 71 big block or small block with F41 - Part number on shock 3192293, 2 letter code on sticker = 'FD'

    rear shock stickers 'EH'.JPG

    rear shock pn 3192282.JPG
     
    Last edited: Jan 14, 2019 at 6:26 PM
    jbloake likes this.
  2. Ken Devine

    Ken Devine Dockroger

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    Dec 5, 2017
    Winnipeg
    This helps
    Thanks for the info
     
  3. Ken Devine

    Ken Devine Dockroger

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    Dec 5, 2017
    Winnipeg
    Any idea how much time the shocks would predate the cars build date?
     
  4. ronzz572

    ronzz572 Veteran Member Lifetime Gold Member

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    Feb 8, 2007
    imperial pa
    Great information, Thanks Scott.
     
  5. 70lt1z28

    70lt1z28 Veteran Member Gold Member

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    Beavercreek, Ohio, USA
    Thanks,Scott. Now if I could only find them.
     
  6. l16pilot

    l16pilot Veteran Member Lifetime Gold Member

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    Dec 13, 2004
    Hurlock, MD, USA
    Awesome info Scott...thanks for taking the time to put this info together. Your NOS shocks appear to be either a dark gray / black...whereas assembly line shocks I've always understood to be a "dove gray". Is it just the lighting in your photos or were OTC shocks a darker color?
     
  7. COPO

    COPO Veteran Member Lifetime Gold Member

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    Ontario, Canada
    Nice job Scott.
     
  8. 70 SS/L78

    70 SS/L78 Veteran Member Lifetime Gold Member

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    May 5, 2005
    Rockford, MN
    The poor lighting in the pictures makes them look darker than they actually are but can't say for sure if it's dove gray. Back when I took the pictures I didn't have a very good camera. The 2 pictures with tape measure have the best lighting.
    This spring when my car comes out of it's storage cocoon I'll try to get a better idea on color. Personally I don't see why these would be a different color than the assembly line, especially since they came with the assembly line stickers.
     
    Last edited: Jan 12, 2019 at 5:24 PM
  9. l16pilot

    l16pilot Veteran Member Lifetime Gold Member

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    Dec 13, 2004
    Hurlock, MD, USA
    Thanks Scott. GM did some weird stuff, so nothing really surprises me...but I agree, having the two-character assembly line stickers is a really good indicator the NOS shocks you have are "right".
     
  10. TommyRS70

    TommyRS70 Veteran Member

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    Jan 31, 2004
    KY

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