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Spider Gears

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by hawglet, Feb 18, 2001.

  1. hawglet

    hawglet 1/2 ton status

    Joined:
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    Location:
    Hastings,NE
    I have an '84 K5 with 400 small block,700r4, and 3.73 gears running 33's. I was leaving work and I got in to it enough to break the tires loose. They caught before I was through the intersection and about 1/2 block later I felt a big BANG, felt like someone assholed me, I stopped cause I have a bed u-joint and figured that was what it was. It wasn't, I'm thinking that it is the spider gears, driving down the road it makes a real loud clunking sound. Of Course I took it out of action immedately. I going to pull the rear diff. cover off tomarrow afternoon to check it out.

    Thanks,
    Greg Gayman
    Hawglet
    Stovie
    hawglet@excite.com
     
  2. blazercrazy

    blazercrazy Registered Member

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    (squinching with pain) good luck!

    Keep the rubber down [​IMG]
     
  3. HarryH3

    HarryH3 1 ton status Author

    Joined:
    May 31, 2000
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    Location:
    Georgetown, TX
    The spider gears aren't spinning while the truck is going in a straight line. They're just along for the ride until differentiation is required. My guess is that you broke a tooth off of the ring gear. [​IMG] Very common failure mode with the 10 and 12 bolt rear ends.

    <font color=black>HarryH3 - '75 K5</font color=black>
    <A target="_blank" HREF=http://ThunderTruck.ColoradoK5.com>http://ThunderTruck.ColoradoK5.com</A>
     

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