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72 axels

Discussion in '1969-1972 K5 Blazer | Truck | Suburban' started by nstarry, Feb 19, 2004.

  1. nstarry

    nstarry 1/2 ton status

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    I am putting a 3/4 ton running gear out of a 72 short bed chev
    into my 74 k5 next week this isint a direct bolt up right those spring purches in the 72 are wider write????? /forums/images/graemlins/confused.gif /forums/images/graemlins/thinking.gif
     
  2. arq

    arq 1/2 ton status

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    you are correct. it's just the rear axel you have to worry about. also check on the shock mounts.

    ARQ.
     
  3. nstarry

    nstarry 1/2 ton status

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    how do you do this install properly?? /forums/images/graemlins/k5.gif
     
  4. Blazer1970

    Blazer1970 1/2 ton status

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    The spring perches are different, and there is no such thing as a '72 3/4 ton short bed.
     
  5. nstarry

    nstarry 1/2 ton status

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    sorry maybe its a long , /forums/images/graemlins/doah.gif it doesent have a box it just looks short to me
     
  6. Beast388

    Beast388 1/2 ton status

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    [ QUOTE ]
    I am putting a 3/4 ton running gear out of a 72 short bed chev
    into my 74 k5 next week this isint a direct bolt up right those spring purches in the 72 are wider write????? /forums/images/graemlins/confused.gif /forums/images/graemlins/thinking.gif

    [/ QUOTE ]

    The fronts axle is a direct bolt in swap. The rear is not. The '72 axle has spring perch distance of 40" center to center. The '74 K5's perch distance is 42.5". You will need to cut the perches off and weld them on at the correct spacing. You will need to move the shock tabs as well. /forums/images/graemlins/waytogo.gif
     
  7. nstarry

    nstarry 1/2 ton status

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    Thanks man!! /forums/images/graemlins/grin.gif now all I need is a cuttin tourch & welder /forums/images/graemlins/angryfire.gif
     
  8. TONYP

    TONYP 1/2 ton status

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    what axle is it, a 12 bolt or 14 bolt? /forums/images/graemlins/truck.gif
     
  9. Blazer1970

    Blazer1970 1/2 ton status

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    '72 3/4 ton would have and Eaton most likely or possibly a Dana 60.
     
  10. nstarry

    nstarry 1/2 ton status

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    EATON /forums/images/graemlins/rotfl.gifhe he he , the front is 44 I dont think its much stronger than the 44 I got in the the k5 now it just has that damn 8 lug patern to match the eaton
     

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