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5-lug to 8-lug?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Bad Karma, Dec 15, 2001.

  1. Bad Karma

    Bad Karma Registered Member

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    Got a '77 Suburban that I use to tow. Can get a great deal on a rear 14-bolt FF, so what do I need to change the front to 8-lug? Spindles-out, or would the A-arms be required, also? Will the stock master cylinder work with 3/4 ton calipers and the 14-bolt drums?

    Thanks for any help!

    Mark
    84 4Runner, beat to hell
    77 Suburban tow rig, not far behind
     
  2. ImpalaSS

    ImpalaSS 1/2 ton status

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    the a arms are diffrent, id swap a arms out, shouldnt need a diffrent master cylinder or anything

    68 SWB 4x4 1 of 1,449 made 327, 465 4 speed, rockwell tcase, dana44, 14 FF, <a target="_blank" href=http://communities.msn.com/68K10>http://communities.msn.com/68K10</a>
     
  3. Captkaos

    Captkaos 1/2 ton status

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    1/2 ton and 3/4 ton front control arms are the same. The differnce is the size of the balljoint. If you want 3/4 ton pieces on the front you need spindles out, and 3/4 ton ball joints.

    Chris Lucas
    <a target="_blank" href=http://www.captkaoscustoms.com>http://www.captkaoscustoms.com</a>
     
  4. ImpalaSS

    ImpalaSS 1/2 ton status

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    ? i thought 3/4 ball joints wouldnt slip into a 1/2 arm?

    68 SWB 4x4 1 of 1,449 made 327, 465 4 speed, rockwell tcase, dana44, 14 FF, <a target="_blank" href=http://communities.msn.com/68K10>http://communities.msn.com/68K10</a>
     
  5. Bad Karma

    Bad Karma Registered Member

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    OK, guys, who knows for sure??? [​IMG]

    Mark
    84 4Runner, beat to hell
    77 Suburban tow rig, not far behind
     
  6. ImpalaSS

    ImpalaSS 1/2 ton status

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    to be serious id trust whatever capt has to say he knows 73-87s ALOT better than me...... im more of a 67-72 guy

    68 SWB 4x4 1 of 1,449 made 327, 465 4 speed, rockwell tcase, dana44, 14 FF, <a target="_blank" href=http://communities.msn.com/68K10>http://communities.msn.com/68K10</a>
     
  7. Captkaos

    Captkaos 1/2 ton status

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    Only diff in the balljoint is the shaft size. A 3/4 ton should go in there. If in doubt, go to the local parts house and look at both applications.

    Chris Lucas
    <a target="_blank" href=http://www.captkaoscustoms.com>http://www.captkaoscustoms.com</a>
     
  8. R72K5

    R72K5 Banned

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    well this just became interesting ! must be 73-up only thing then ? havent been able to do so on a 67-72 in the past, hmmmm

    run it til it breaks, fix it, and break it again!
     

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