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10 to 12 bolt

Discussion in 'The Garage' started by rick88blaze, Feb 24, 2003.

  1. rick88blaze

    rick88blaze 1/2 ton status

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    are 10 and 12 bolt u-joints the same or would i need a different type when i swap out axles
     
  2. BowtieBlazer

    BowtieBlazer 1/2 ton status

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    its a different joint....I just finished my swap last night....I couldn't find teh exact u-joint but found 2 and made them work...cost 27 for one and 25 for the other....so it was one hell of a $$$ u-joint but it works....
     
  3. CHEVY 4WD

    CHEVY 4WD 1/2 ton status

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    Napa might have the conversion U-joint I know my local speed shop sells them

    BowtieBlazer is that the only thing you changed?
     
  4. 87sm465np208

    87sm465np208 1/2 ton status

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    napa sells them, if you want the U-joint number i will go out and get the box number for you on request. /forums/images/graemlins/thumb.gif. i did the same swap back in november. /forums/images/graemlins/thumb.gif while having the flu. /forums/images/graemlins/eek.gif

    /forums/images/graemlins/usaflag.gif /forums/images/graemlins/truck.gif
     
  5. rick88blaze

    rick88blaze 1/2 ton status

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    if you could get me the part # that would be awesome. i'm planning on making the swap next month or two some time, want to build the axle the way i want it first
     
  6. Blazinaire

    Blazinaire 1/2 ton status

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    to make life even easier for you, you can swap the 10 bolt yoke onto the 12 bolt and use the same joint that you are using now . The 10 bolt uses a bigger yoke/joint (stronger than 12) and you will save $$$ on u-joints. The only thing that you will have to change is the pinion seal to #cr19277 (about $16) available at most any parts store /forums/images/graemlins/thumb.gif. I wish that I had done that to mine from the start /forums/images/graemlins/tongue.gif
     
  7. rick88blaze

    rick88blaze 1/2 ton status

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    so the 10 bolt yoke will bolt on the 12 bolt pinion?
     
  8. Blazinaire

    Blazinaire 1/2 ton status

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    indeed it will but you must change the pinion seal (I just made a ryhme /forums/images/graemlins/grin.gif)
     
  9. MITCH_89'

    MITCH_89' Registered Member

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    I am About to do the same swap. If my 10-bolt yoke will fit, that is what I will do. Sure would keep things simple.
    So without a doubt, this will work, right???
     
  10. ColAdo82K5

    ColAdo82K5 1/2 ton status

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    Hey,
    I've heard this works out as long as you get the seal. Some here say they have done it but others claim that there is no way. I don't think enough people do it to really have a large bais for opinion..but i will be trying this soon myself.
    Blake
     
  11. rick88blaze

    rick88blaze 1/2 ton status

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    hey i appreciate the info. i saved the seal part # so i have it when i do the swap thanks for your help /forums/images/graemlins/smile.gif
     
  12. 85HeartBurb

    85HeartBurb 1/2 ton status

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    if you decide to do the u-joint just measure the cap size and then from cap to cap NAPA has the chart for hybrid joints just my 2 /forums/images/graemlins/thumb.gif
     
  13. rick88blaze

    rick88blaze 1/2 ton status

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    thanks, but i think i will stick with just changing out the pinion yoke.
     
  14. 4x4Freak

    4x4Freak 1/2 ton status

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    I swapped yokes on my 12 blt.
     
  15. BowtieBlazer

    BowtieBlazer 1/2 ton status

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    [ QUOTE ]
    BowtieBlazer is that the only thing you changed?

    [/ QUOTE ]

    That's it! I started the swap at 5:30 at night with an hour finding the right u-joint (dumb fawks around here)...and an hour for dinner I was finished by 11.....so about 3:30hrs doing the complete job by myself.... /forums/images/graemlins/thumb.gif
     
  16. Headbanger

    Headbanger 1/2 ton status

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    I did the swap and just checked with a local driveline shop and they had the conversion u-joint in stock. They said it's a very common switch and they keep a couple in stock at all times.
     
  17. 87sm465np208

    87sm465np208 1/2 ton status

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    good greif, i bought that conversion U-joint and its already going bad, yes i greased it, i still have the yoke from my 10 bolt, and the old U-joint, im wondering if i feel like changeing the yokes, and yoke seals, im not sure how hard it is or how hard i have to torque down on the yoke. but it sounds like somthing i might do /forums/images/graemlins/thumb.gif.

    /forums/images/graemlins/usaflag.gif /forums/images/graemlins/truck.gif
     
  18. Silver84k5

    Silver84k5 1/2 ton status

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    i changed a yoke on my old 12 bolt a year ago or so, and a few weeks later, 2 teeth on the pinion broke, i dunno if this we because i didnt torque it down right or what, but be careful...
     
  19. 87sm465np208

    87sm465np208 1/2 ton status

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    hmm interesting, i still might think about this tho, because i dont want to spend 28$ on a weenie U-joint. /forums/images/graemlins/thumb.gif

    /forums/images/graemlins/usaflag.gif /forums/images/graemlins/truck.gif
     
  20. 87sm465np208

    87sm465np208 1/2 ton status

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    on that, i found a timkin seal, at autozone, is the chicago rawhyde pinoin seal some sort of special hybrid seal, or somthin, because i can go get the seal right now and do this. /forums/images/graemlins/thumb.gif, and i looked at my old ten bolts yoke and my 12 bolt yoke, and the 12 bolt yoke pulls back farther then the 10 bolt yoke, the ten bolt yoke will push the driveshaft up alittle bit, which is a good thing since im doing the 4" all spring R\C lift soon. /forums/images/graemlins/thumb.gif

    /forums/images/graemlins/usaflag.gif /forums/images/graemlins/truck.gif
     

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