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10 to 12 bolt interchangeability?????

Discussion in 'The Garage' started by Supreme70, Nov 29, 2005.

  1. Supreme70

    Supreme70 1/2 ton status

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    I'm wondering if you can swap the rear backing plate with the wheel cynlinder on it, form a 87 10 bolt to a 84 12 bolt, and does the drums interchange as well, was also wondering if the axle seals are interchangeable too. :dunno:

    PLEASE HELP!!!!!!
     
  2. pauly383

    pauly383 Daddy383 Staff Member Moderator

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    I have 83 10 bolt brakes , backing plates and all , on a 70's 12 bolt :D

    The difference is in the center section and axle spline .
     
  3. Blazer1970

    Blazer1970 1/2 ton status

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    An '84 12 bolt?
     
  4. beater_k20

    beater_k20 Banned

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    no such animal. 12 bolts were phased out in 1981.
     
  5. Supreme70

    Supreme70 1/2 ton status

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    I got a set of axels and the guy said they were from a 84, now I know better. so the backing plates will work, what about the axel seals.
     
  6. pauly383

    pauly383 Daddy383 Staff Member Moderator

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    Should be no problem on the seals . I stuck 30 spline 10 bolt axles in a 12 bolt for a month ( with material welded on the end to make right length to the crosshaft ) while waiting on 12 bolt axles , and no leaks or anything .
     
  7. Supreme70

    Supreme70 1/2 ton status

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    so are the 12 bolts stronger or the same as 10 bolts as far as strength.
     
  8. redneckdude

    redneckdude 1/2 ton status

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    they have a couple MARGINAL strength differences...not really worth talking about...in all honesty, they are just about the same strength overall.
     

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