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Lowered two piece drive line.

Discussion in 'Lowered & Street Systems' started by Roadguy, Nov 3, 2019.

  1. Roadguy

    Roadguy Junior Member

    Posts:
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    Joined:
    Mar 29, 2019
    Location:
    Fresno CA
    First Name:
    Jarod
    Truck Year:
    1975
    Truck Model:
    C10
    Engine Size:
    350
    I’ve read everywhere and can’t seem to come up with a solid answer in terms that aren’t hard to follow. I find tons of info on a single driveshaft but none on 2 piece angles. We’ve lowered my sons 75 c10 truck with some shackles (it’s already got a flip kit) it’s got a low speed vibration when accelerating. I’ve replaced carrier bearing and all the universals. We tried a 2 degree shim today and it’s still there. Could anyone help shed some light on what the next step would be? Raise the carrier? More pinion shim?
     
  2. eskimomann209

    eskimomann209 Full Access Member

    Posts:
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    Joined:
    Jan 9, 2019
    Location:
    Modesto
    First Name:
    Marcus
    Truck Year:
    1973
    Truck Model:
    C10
    Engine Size:
    5.3
    Don’t go shimming all willy nilley! here are a couple of pics that’ll help you
    Eliminate angle issues.

    9D57D8F5-DA44-464C-8F88-A8146A2A6B01.png

    6098224A-BA0B-404D-A0F1-47F8064CB9B5.png
     
  3. eskimomann209

    eskimomann209 Full Access Member

    Posts:
    1,172
    Likes Received:
    1,047
    Joined:
    Jan 9, 2019
    Location:
    Modesto
    First Name:
    Marcus
    Truck Year:
    1973
    Truck Model:
    C10
    Engine Size:
    5.3
    rules of angles apply. You want to get the operating angles within 1-2 degrees of another. The shorter the driveline the closer you want the operating angles to be.
     

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