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Do I have to do a new crush sleeve?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Blue85, Oct 19, 2001.

  1. Blue85

    Blue85 Troll Premium Member

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    I am ptting new pinion bearings in a 14BSF axle and was told that I will have to get a new crush sleeve and put mondo torque on it to set the bearing preload. My questions are, do I have to do this? What happens if I reuse the old crush sleeve? and How do I put 300-400 ft. lbs. of torque on the pinion nut with no carrier in the axle and the axle not on the vehicle?

    Maybe I will have to wait until the axle is swapped in, then put a pipe wrench on the yoke so that it hits against the floor and then use a big breaker bar and pipe on the pinion nut?

    Also, is it OK to pre-crush the sleeve a little in a press to make it all easier?

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  2. Emmettology 101

    Emmettology 101 3/4 ton status

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    I am not sure what to tell ya about the crush sleeve. On one hand you are using the same gears os the set-up should stay the same so I would think re-use the sleeve. On the other hand, you are using new bearings which would probably require a different preload.... Hopefully someone else can shed light on that..

    If you do have to use a new crush sleeve to get the crushing started put it in a hyd. press and compress it until you see it just start to crush and then install it with a large breaker bar....

    :)

    Mike

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  3. ftn96

    ftn96 1/2 ton status

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    Yes, pre crushing is the way to go.
    As far as re-using the old sleeve, if you are putting in new bearings, you could "maybe" get away with it, but would NOT recommend it. Besides they come in the install kit.

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  4. Blue85

    Blue85 Troll Premium Member

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    Who said anything about having an install kit? [​IMG]

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  5. ftn96

    ftn96 1/2 ton status

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    Ok, well no one did. but but ...... [​IMG]

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  6. ftn96

    ftn96 1/2 ton status

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    But the 1/2 install kit comes with the bearings, new lock nut (which is a good thing), cover gasket, and the crush sleeve.

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  7. Mr.Chevy4x4

    Mr.Chevy4x4 1/2 ton status

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    Measure the height of your old crush sleve and the height of the new crush sleve and pre-crush the new one half of the difference of the two. With this done you should only have to apply 100 to 120 lb.ft. of torque to crush it the remainder required to get the correct preload. Hope this helps.

    '85 K5 : Run it til it breaks, then fix it and go again!
     
  8. ftn96

    ftn96 1/2 ton status

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    Ditto.

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  9. Grim-Reaper

    Grim-Reaper 3/4 ton status Author

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    Funny I had no problem crusing the crush sleave. didn't break a sweat dooing it. Course I used my non wuss impact wrench to do it. hehehe.

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  10. ftn96

    ftn96 1/2 ton status

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    LOL. I need to get me one of those no wuss ones. Mine just start to wuss out on me the other day.

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