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78 c10 rear shock frame mounting

Discussion in 'Lowered & Street Systems' started by 78C10BigTen, Feb 10, 2019.

  1. 78C10BigTen

    78C10BigTen Full Access Member

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    First Name:
    ted
    Truck Year:
    1978
    Truck Model:
    C10 BIG TEN
    Engine Size:
    350
    Just a quick question. Looking to replace my factory rear shocks on my 78 and im unsure how they bolt to the frame. Are they bolted through the frame or do they go on a stud?
     
  2. dajn37

    dajn37 Full Access Member

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    Truck Year:
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    You will want to use the bolt that comes with the new shock. Here's what it looks like on my 87 v20. The box is off so it was simple. I need rear shocks bad on my 87 half ton also. With the box on it wont be near as easy. Probably end up torching them off. We shall see.

    15498379290717077951382268332088.jpg

    1549837957815625442961297757174.jpg
     
  3. dajn37

    dajn37 Full Access Member

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    Also I found that it works well to start by bolting the shock to the frame first. Then cut the band holding the shock and have a bolt ready for the bottom as the shock expands out. Hope that makes sense
     
  4. 78C10BigTen

    78C10BigTen Full Access Member

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    Thats how i planned it. I just aint sure if it bolts on or if its a stud. I replaced the rear yesterday and while the shocks hung from the frame i collapsed them completely and they didnt even try to return lol so 40 years later i think theyre due to be replaced.
     
  5. dajn37

    dajn37 Full Access Member

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    And to be clear, it has threads on both sides. So I suppose it's not a bolt, it's a stud with threads on both sides. But you definitely will want to use the new one that should come with the shock. When I bought my shocks, it came with. The bottom bolt didn't but that's no big deal. As you know, the bottom is just a regular bolt.
     
    78C10BigTen likes this.
  6. idahovette

    idahovette Full Access Member

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    Good idea . I like to take the band off and "pump" the shocks, that is compress them 3 or 4 times . It helps get the air bubbles out and also to make sure the shock is working before installation. Not totally uncommon to get a "bad" new shock. You can put the band back on to help with the install
     
  7. 77 K20

    77 K20 Full Access Member

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    [​IMG]

    Picture of the rear shock stud. Some shocks don't come with them.
     

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