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polyurethane body mount bushings

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by dodgedude99, Jun 6, 2004.

  1. dodgedude99

    dodgedude99 1/2 ton status

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    well i finally got around to installing the new Energy Suspension bushings on my K5 today.
    i think i figured out why it leaned to one side!!!!

    the bushings just crumbled apart when i loosen th bolts on the cab mounts, and one the bed mounts, the previous owner when he replaced the floor and tail pan must of found the same thing, except he substituded HOCKEY PUCKS.
    i still have to go get new bolts since the originals are pretty much rotted down to pencil thickness in the middle.

    should they be GRADE 8 or is GRADE 5 ok?
     
  2. Muddytazz

    Muddytazz 1 ton status

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    Grade 5's will be just fine since that what stock is /forums/images/graemlins/thumb.gif
     
  3. dodgedude99

    dodgedude99 1/2 ton status

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    sweet, thanks.
    better off asking first then spending the $6 or so per grade 8 bolt.
     
  4. TorkDSR

    TorkDSR 1/2 ton status

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    stick with grade 5... its more removable than a rusted grade 8
     
  5. jjlaughner

    jjlaughner 3/4 ton status

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    I thought the reasoning behind the grade choices where grade 8 bolts will shear where a grade 5 will bend/flex? /forums/images/graemlins/thinking.gif

    What was it someone posted a while back about using grade 8 bolts and everyone said they should use grade 5? Mounting a winch or something /forums/images/graemlins/thinking.gif
     
  6. TorkDSR

    TorkDSR 1/2 ton status

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    i just use grade 5 because when its rusted solid you can torch or cut it off

    grade 8 is a bit tougher
     
  7. imiceman44

    imiceman44 1 ton status

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    [ QUOTE ]
    i just use grade 5 because when its rusted solid you can torch or cut it off

    grade 8 is a bit tougher

    [/ QUOTE ]

    I use grade 8 because I can get them cheap enough and they only have grade 8.
    If I could have grade 5 for the same price I would because this is where you want a softer bolt that could give instead of breaking and like you said easier to take out when rusting.
    /forums/images/graemlins/rotfl.gif
     

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