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Where to Look for Crack in Frame Caused by Steering Box?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Qubit, Apr 8, 2002.

  1. Qubit

    Qubit Registered Member

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    I've been lookin' over the blazer today to see what work to do on it next.

    It's fairly obvious the previous owner did some off-roading (lotsa dirt everywhere).

    I've heard that blazers (I have a K5 96 Blazer) get cracks on the frame from the steering box. Where exactly should I look to see if my frame is cracked? Do I need to remove the box to see?
     
  2. chaka454

    chaka454 1/2 ton status

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    No you dont need to remove the box if you have a cracked frame believe me you will see it right away, I know I did.
     
  3. Headbanger

    Headbanger 1/2 ton status

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    First place to look is around the bolt holes. That's where most of the stress goes first.
     
  4. kpanza

    kpanza 1/2 ton status

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    Have someone in the truck crank the wheel back and forth to the stops (obviously do this with the truck running!). If the frame is cracked you will usually see the box move as it gets to the end of its travel one way or the other...and you might also hear a "popping" noise as it flexes. You could also do this test with the tire up against the curb, but if your frame is cracked, the first way should work...you might see some cracks around the bolt holes if you really look good...

    If you plan on wheeling it, I advise to put both the ORD Brace kit and the Weld-In Frame kit on now, especially if it isn't broken yet! I had the brace kit on for years, and then the frame cracked still, so had to repair it with the weld-in kit.
     
  5. jimmyjack

    jimmyjack 1/2 ton status

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    I dunno if this is really a problem on the later blazers cos of the IFS. Thought it was only on the straight axles.
     
  6. Can Can

    Can Can Pusher Man Staff Member Super Moderator

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    Just one question guys - Would a 96 have the same steering box set up as on our straight axle trucks? I just noticed that he said he had a 96.........
     
  7. redrightthand

    redrightthand Registered Member

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    Probably a typo, must have meant 86
     
  8. DesertDueler

    DesertDueler 1/2 ton status

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    His profile says 86, so its a typo
     
  9. Qubit

    Qubit Registered Member

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    damn..bad proofreading...i did mean an '86 not a '96...

    sorry for the confusion...and thanks to all for the tips!
     

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