68 is coming along nicely

Discussion in '1969-1972 K5 Blazer | Truck | Suburban' started by bradshawtech, Feb 13, 2021.

  1. bradshawtech

    bradshawtech 1/2 ton status Premium Member

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    Hmm, what do I have here? I’m totally green on these axles.
     
  2. obijuank5

    obijuank5 3/4 ton status Premium Member GMOTM Winner

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    Look like you originally had the gm ho72 with the oem no spin. Potentially had a bearing failure and the gmc dana 60 rear was swapped in. Or you have paperwork from a different truck!
     
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  3. bradshawtech

    bradshawtech 1/2 ton status Premium Member

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    Ok, anything else needed to be changed when making that axle change, shock mounts, drive shaft length, brake line routing? All that looks original to me except the soft brake line down to the top of the axle, I figured it was different because of the flat bed they put on it. I will pull the covers and check to see what’s inside and verify ratios too.
     
  4. obijuank5

    obijuank5 3/4 ton status Premium Member GMOTM Winner

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    I believe them to be a direct interchange.
     
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