1993 GMC suburban C1500 2x4...need axle help

Discussion in 'GM Powertrain' started by Zombie Killer, Mar 9, 2011.

  1. Zombie Killer

    Zombie Killer New Member

    My 1993 suburban's spider gears in the differential has broken. I am not real familiar with GM axles. Can someone point me where I can find info and maybe a write up for this job. I have done a search but haven't found everything........any advise would be greatly appreciated. I need this back on the road asap.
  2. dualdj1

    dualdj1 Rockstar 100 Posts

    I'm not an axle expert, so take this with a grain of salt. I'm pretty sure you can't change the spider gears without pulling the carrier. When you pull the carrier, you should probably go ahead and change the bearings on it as well. There is a center pin in the carrier that holds all the spider gears in place. Again not sure exactly what it takes to get that pin out, but get the pin out and then you can change the gears. When putting back together make sure to set the preload and backlash. Here's some better info i found:

  3. Zombie Killer

    Zombie Killer New Member

    Idendification help......

    Thanks for the link.

    Here are some pictures of my diff. What do I have? Is this a limited slip?
  4. Zombie Killer

    Zombie Killer New Member

    Found the answer......G80 Gov-loc.

    Now to fix it
  5. racekid91

    racekid91 Rockstar 3 Years 100 Posts

    G80. They are REALLY unreliable. Get yourself a Detroit Trutrac. That's what will be going into my 14bolt SF next year when I go SFA

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