1970 Z28 Rear Springs

Discussion in 'Original Drivetrain Topic' started by Ricks72Z28, Oct 6, 2011.

  1. bkmont

    bkmont Veteran Member

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    Do you count the short one on the bottom?
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  2. Dave Nelson

    Dave Nelson Veteran Member

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    yes
     
  3. Ricks72Z28

    Ricks72Z28 Veteran Member Lifetime Gold Member

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    Ok, resurrecting an old topic and wanted to see if any progress has been made. I getting ready to start my next project and 5 leaf's are what I'm thinking about installing.
     
  4. 70COPO

    70COPO Moderator Lifetime Gold Member

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    Scott has some 1970 SS photos he could share sometime :bowtie:
     
  5. FlaJunkie

    FlaJunkie Veteran Member Lifetime Gold Member

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    When I ordered mine from NPD several years ago, the replacement for the "396" was the right one. Need to make sure it is a five leaf replacement, unless you are moving to some modern design.
     
  6. twozs

    twozs Veteran Member

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    my 73 has 5 leaves ( or leafs ) . it looks pretty original . had all the straps and most of the cushions . [​IMG] [​IMG]
     
  7. BobsRS/Z28

    BobsRS/Z28 New Member Lifetime Gold Member

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    Rear Springs for my 71 Z28??????

    I have a 71 Z28 and I bought a set of 5 leaf springs in Charlotte last fall from a Camaro/Chevelle vendor that is local to me in VA (I try to buy local if possible) and I have yet to install them due to hearing the same story from other people stating that my Camaro will be higher than stock once installed. Shouldn't most of the second generation Camaro's have the same rear spring set-up???? Thanks, Bob
     
  8. 70 SS/L78

    70 SS/L78 Veteran Member Lifetime Gold Member

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    Not sure if this helps in any way but according to the official '1970 Camaro Specifications' book there were 3 different rear leaf springs available. It doesn't mention the number of leafs but looking at the numbers I would say the base 6 cyl/V8 is 4 leafs, the 'SS' small & big block, 5 leafs and the Z28 5 leafs.


    Here's a copy of the page showing the chart from Chevrolet
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  9. 70 SS/L78

    70 SS/L78 Veteran Member Lifetime Gold Member

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    Thank you to Phil for providing me these photos, pretty sure these are the ones he's refering to.... As you can see, these are from a Aug 1970 road test being done on a 1970 SS 396 Camaro. You can see how high the back of the car sits when new! When I installed my new springs from Eaton over a year ago this is how high the back of my car sat. Thou I'm sure over a long period of time (years) the car will settle down. I do know that after 20+ years both of my 70 big block cars didn't sit as high as the car in the photo below. What's also unknown in the pic is how much the angle of the ground vs the car is effecting it's stance?

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  10. 70COPO

    70COPO Moderator Lifetime Gold Member

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    Scott,

    That would be the photo set. Thanks for posting them up:bowtie:

    While doing the research for the book I located the Chevrolet Trim height report - including 1970 for Norwood Ohio.

    The summary:

    "Trim Height Tolerances were obtained from the Assembly Instruction Manual"

    "....Specific trim height variations range from 1.00 to 2.00 inches"

    "Data from the 1970 Camaro was obtained to get information on Chevrolet's most recent model release. From the data obtained it is evident that most vehicles are running low in the front and high in the rear. These are quite often related problems as an excessive "D" height causes an increased deflection of the front suspension".

    "5% of the cars checked were below specification. 59% were above specification".
     

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