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crush sleeve ?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Mr. Jimmy, Dec 1, 2002.

  1. Mr. Jimmy

    Mr. Jimmy Registered Member

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    I will be putting together a 10 bolt next weekend and would like to know what the purpose of the crush sleeve is? I have read that you should get the pinion depth correct and then install crush sleeve, is this possible? Am I going to need a impact wrench for this job? I've been looking at the IR 425 ft lb impact sold by Harbor freight, anybody have one of these and should it do the job?
     
  2. mudddog91

    mudddog91 1/2 ton status

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    I wouldnt recomend using an impact to crush the crush sleeve.I have always used a breaker bar and a pinion flang holding tool I made to gradually crush the sleeve to the correct running torque.Use of an impact may torque it too much making it neceassary to install another sleeve.
     
  3. Mr. Jimmy

    Mr. Jimmy Registered Member

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    How will I know when the crush sleeve is crushed correctly? I have considered making a holding tool for this job, but have read that it may take 300-350 ft lbs to crush. Can I do this with a long pipe extension? Should I set pinion depth without installing crush sleeve? Can an old crush sleeve be reused?
     
  4. Shaggy

    Shaggy 3/4 ton status

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    <font color="green"> You'll know when you're getting close when there is no play left in the bearings. When the crush sleeve has not been crushed down far enough the pinion will move back and forth, since the sleeve keeps the inner and outer bearings from both seating. One of them is going to be off of it's race. As soon as there is no play then you're getting real close, you should start taking pinion bearing preload measurements very often.

    When I did the crush sleeve for my 14 bolt I used a 1/2" breaker bar with a 4 foot cheater bar on it. The yoke was held in place with a large vise, and it took some serious grunt to get it to crush all the way down. I'm 250 lbs, I was holding the end of the cheater bar with both feet planted on the side of the workbench, pulling with all my might, and the thing just barely started to crush down. 20 minutes of that and we were done. /forums/images/graemlins/thumb.gif </font color>
     
  5. tipoil

    tipoil 1/2 ton status

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    here is the info that u will need diff setup
    check the"diff repair and instalation instruction"and the "setup spec"
    i did it like they said and it always worked!!!
     
  6. MNorby

    MNorby 3/4 ton status Premium Member GMOTM Winner

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    just did my 14FF gears and we put the pinion housing into a vise and used a hammer to tighten the vise so it wouldn't slip. Put a pipe wrench aroudn the yoke so it doulnd turn then used a 1/2" drive ratch (very biggen) and a 3' pipe to tighten till no play in the pinion then torqued till abour 25 rotating inch pounds (in other words by feel /forums/images/graemlins/tongue.gif)
     

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