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Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by dmanblazer, Apr 12, 2005.

  1. dmanblazer

    dmanblazer 1/2 ton status

    Joined:
    Sep 5, 2004
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    Location:
    Wellington, Kansas
    My '79 K5's rearend (12 bolt) is making noise when I let off the throttle, even when I put it in neutral. It is a (getting louder & louder>) knock.

    When I dropped the driveshaft I found that there is a 1/2" of slop in the pinion when I tried to rotate it.

    I haven't messed with a rearend before and I'm thinking about rebuilding it myself, I built the engine so I know I can do this, but I may need a little input.

    How long should it take?
    What are the major parts to be replaced?

    I don't have alot of money, but I'd like to install a posi carrier, stay with the 3.73 gears, and if at all possible reuse my axelshafts.

    Any suggestions guys?
     
  2. Resurrection_Joe

    Resurrection_Joe 1 ton status

    Joined:
    Jan 9, 2002
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    Location:
    Gettysburg, SD
    If your up for a 800 mile drive I have some 3/4 tons I wanna get rid of
     
  3. pauly383

    pauly383 Daddy383 Staff Member Moderator

    Joined:
    Jul 22, 2001
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    Location:
    Mesa , Arizona USA
    Did you try tightening the pinion nut ? 12 bolts back off sometimes , one of mine did too . Luckily I caught it before it got bad . Worth a look if you want to save some money for now . Worse case is axle swap , but that isn't too bad either .
     

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