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Stock 1/2 Ton Rear Leaf Spring Pack Size

Discussion in 'Tech Discussion' started by Charlie, Dec 31, 2018.

  1. Charlie

    Charlie Full Access Member

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    Joined:
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    Location:
    Euless, Texas
    First Name:
    Don
    Truck Year:
    1974
    Truck Model:
    Cheyenne 10 LWB
    Engine Size:
    350/TH350/AC/4 BBL Quadrajet
    Wanting to replace my rear leaf springs. Currently have a 8 (7+1) pack. SPID code is G50-Heavy-duty rear springs. They are OEM. I am thinking that this maybe later on became known as a Heavy Half, not for sure. Looking to get standard stock springs. Not sure if it is a 4 (3+1) or 5 (4+1) pack for standard 1/2 ton LWB. Would like information for this. Thanks.

    Also, if any DFW members can recommend a supplier would be great.
     
    Last edited: Dec 31, 2018
  2. wick

    wick Junior Member

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    Location:
    Grants Pass, Oregon
    First Name:
    Rick
    Truck Year:
    1980
    Truck Model:
    C-10 stepside
    Engine Size:
    350
    Hi, I recently purchase a 80 step side and replaced the rear springs. One thing to watch (I learned by mistake) is they made 2 lengths... 52 inch eye to eye, and 56 inch eye to eye. if you have the 8 pack, it is probably 56 inch. I looked on craigs list for mine.
     
  3. Charlie

    Charlie Full Access Member

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    Euless, Texas
    First Name:
    Don
    Truck Year:
    1974
    Truck Model:
    Cheyenne 10 LWB
    Engine Size:
    350/TH350/AC/4 BBL Quadrajet
    Thanks, yea I knew there were 2 sizes, measured before but don't remember right now the length. I am wanting new if I can find them. Used might be ok, but probably weaker due to age.
     
  4. Craig 85

    Craig 85 Full Access Member

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    Location:
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    First Name:
    Craig
    Truck Year:
    1985
    Truck Model:
    K30 SRW
    Engine Size:
    454/TH-400/NP205
    I had my rear springs rebuilt by a local shop. My K30 was an 8/1 plus the auxiliary over load. My leaves did not sag, but I had a leaf broken on either side. To soften the ride a little, I had them remove 1 leaf. New bushings and spring glides installed. Cost was about $375 (California prices).
     
  5. 77 K20

    77 K20 Supporting Member Supporting Member

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    Location:
    Montana
    First Name:
    Mike
    Truck Year:
    1977
    Truck Model:
    K20 5" lift
    Engine Size:
    HT383 fuel injected
    When I was researching rear leaf spring options I found Rock Auto's website very helpful.

    https://www.rockauto.com/en/catalog...350cid+v8,1030037,suspension,leaf+spring,7544

    Hopefully that link works...

    It looks like the 7+1 spring pack is a 56" spring.

    Looks like there was a 3+1 and a 4+1 but they are both a 52" spring.

    You can drill out your spring hanger and move it forward- but that is a lot of work.

    Could have a spring shop remove certain leaves and freshen up the spring pack (new bushings). This could change your ride height though...
     

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