How to weld axle tubes on GM 8.5" 10-bolt

Discussion in 'Transmission & Driveline Topics' started by Kevin Callahan, Apr 28, 2004.

  1. Camaro-Chevelle

    Camaro-Chevelle Veteran Member Lifetime Gold Member

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    Sep 22, 2007
    Long Island, New York
    I would recommend upgrading to an 8.5. There is no shortage of the 8.5s since they were installed in every Camaro from 1971 - 1981.
     
  2. big gear head

    big gear head Veteran Member

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    Jul 30, 2001
    Central City, Ky.
    I agree, don't spend the money on the 8.2. Start with the 8.5 and built it. You will have a much better rear end in the long run.
     
  3. BigZ74

    BigZ74 New Member

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    Jul 29, 2016
    Canada
    read your how to weld rear diff . Couple questions. Which tungsten pin do recommend ? 2% thoriated 2% ceriated? Did you use a gas lense or standard diffuser ?
     
  4. big gear head

    big gear head Veteran Member

    6,072
    42
    Jul 30, 2001
    Central City, Ky.
    Not sure what Kevin uses, but I use a gas lense with a number 7 cup. I've used thoriated, ceriated and pure tungsten and on DC I can't tell much difference.
     
  5. Blown Camaro

    Blown Camaro American by birth, drag racer by choice

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    Dec 13, 2009
    Deltona, FL
    I made it to a 1.60 60 foot before my stock 10 bolt broke the plug welds many years ago. Really tore up the floor. It cost me a driveshaft and a converter too!
     
  6. 1978davidw

    1978davidw New Member

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    Nov 13, 2018
    Has anyone brazed their housing before? seems this would be a good option since brazing is usually stronger on cast than even nickel welding?
     
  7. Jeep43

    Jeep43 Veteran Member

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    Mar 30, 1999
    Connecticut
    This. I had a fox 8.8 that I had a chassis builder weld the tubes. He wanted the caps so he could bolt the fixture bar in the housing and verify the concentricity of the ends. According to him he uses localized heat to move the tube ends to line everything up. Cost me a $100 bill to have it done.
     
  8. badazz81z28

    badazz81z28 Veteran Member

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    May 4, 2001
    Las Vegas, NV
    ^^ That's pretty cheap. The nickel rod alone cost me like $50
     
    John Wright likes this.

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