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where to get a 12-bolt

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by joe84bb, Jun 29, 2000.

  1. joe84bb

    joe84bb Registered Member

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    O.K. so maybe I do need to swap my 10 for a 12...do I need one from a K5 or will any chevy truck do? I can't recall, but I thought someone had mentioned earlier about having to make some small changes. Also, which years should I be looking for?

    I know just enough to know that I'll never know enough.
     
  2. BigBadBowTie

    BigBadBowTie 1/2 ton status

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  3. chevy4x4

    chevy4x4 1/2 ton status

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  4. BIGJ

    BIGJ 1/2 ton status Author

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    Pretty much any 12 bolt from 73 on up should fit. You can even use a 2wd axle. All you would need is the backing plates off of a 4wd axle. The drums on 4x4 chevy axles are thicker than the 2wd models. I got my 12 bolt off of a 70's model 2wd pickup and re-used the backing plates off of my 10 bolt when I did my swap.

    BIGJ
     
  5. Executioner

    Executioner 1/2 ton status

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    your need to tell the whole story, Most 2WD 12 bolts have 5 lug pattern, and 6 lug drums don't fit on 5 lug axles
     
  6. Jason73K5

    Jason73K5 1/2 ton status

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    If you're going to look for an axle, I'd go for a 14 bolt. The 12 bolt really isn't much stronger that the 10 bolt and wouldn't be worth the swap in my opinion. I believe that the 10 and 12 bolts even use about the same size axle shafts.
     
  7. BIGJ

    BIGJ 1/2 ton status Author

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    Ok, I assumed the individual looking for a 12 bolt would want to replace the axles and gears, etc.... Next time I will GO OVER EVERYTHING WITH A FINE TOOTH COMB SO I WON'T PERTURB (upset) THE GREAT EXECUTIONER!!! MAYBE YOU SHOULD GO OVER EVERY POST IN THIS FORUM TO SEE IF ANY ONE ELSE EVER MAKES AN ASSUMPTION OR A MISTAKE (i forgot, you already have LOL!!). All I can say about 5 lug axles not fitting six lug wheels is, DUH!

    BIGJ



    BIGJ
     
  8. Jason73K5

    Jason73K5 1/2 ton status

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  9. nyyef

    nyyef 1/2 ton status

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    i need a yes or no answer.....
    if i find a 2WD truck 12bolt, can i leave the diff in the hounsing and swap the axles, backing plate, and brakes and bolt it up to my k5?

    Knife.
     
  10. But how bad is the weight difference gonna hurt? And can't you beef up the 12 to get the 14 strength without adding all the extra weight?
     
  11. BIGJ

    BIGJ 1/2 ton status Author

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    Yes.


    BIGJ
     

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