Changing Pinion Seal/Bearing Question

Discussion in 'Got gears?' started by GSXMEN, Oct 30, 2004.

  1. GSXMEN

    GSXMEN Got Jesus?

    I need to re-install the yoke, pinion bearing & seal on one of the rearends I'm selling. A "friend" helped himself to my 1330 yoke without my knowledge for his truck......nice guy huh?! :rolleyes: Anyways....

    Trying to find out how to re-install these parts without disturbing the crush sleeve and the proper procedure to torqueing the pinion nut(which will be new).

    Kinda hoping to not have to disassemble the rear to do this....if at all possible.

    Thanks :TU:
     
  2. 66skylarkpost

    66skylarkpost 430 powered '66 skylark

    crush sleeve

    it can be all done wiht out tearing it all apart , but its alwasy best to replace the crush sleeve with a new one whenever the yoke would be removed as the sleeve acts as a bearing spacer detemining bearing preload. pop the seal , pull the front pinion bearing out (may take some persuation with a pick, pull) then with the pick pull out the sleeve and then replace and reassemble . you will need a large torgue wrench or breaker bar with some grunt , or use and impact , but DONT go to far to over crush the crush sleeve . i just use an old "feel for it " technique as for the bearing preload . as crush sleeves i've seen are sold in packages of two . always have asecond in case yaq over crush one-steve
     
  3. GSXMEN

    GSXMEN Got Jesus?

    Hoping not to have to go the new crush sleeve route - if at all possible.

    Has anyone swapped a new seal & outer bearing without needing a new crush sleeve?

    The info I've gotten so far, is to torque the pinion nut until getting 15 in/lbs of resistance (add 7.5-10in/lbs with carrier installed.) - that's with used bearings. With new bearings, go to 25in/lbs.

    Would it seem feasible, that with only one new bearing - to go with 20in/lbs.??

    If it ends up needing a new crush sleeve to make this go back together properly - that's what it will get. I want this to be done right (hopefully, as cheap as possible too :Brow: )!!
     
  4. 66skylarkpost

    66skylarkpost 430 powered '66 skylark

    uh huh

    well i have to admit ive reused a sleeve , but what your doin in applyin more preload to the bearings and run the risk of the pinion nut backin off. unless ya maybe spot weld it.
     
  5. GSXMEN

    GSXMEN Got Jesus?

    Talked to my friend Tony, he's going to be re-setting the pinion by pattern - said he can get it spot on(everyone needs friends like him!!) :TU: I'll be putting in a new crush sleeve, outer bearing, seal, washer & pinion nut. Good as new!! :cool:

    He said trying to use the old sleeve would have resulted in noise within 2 weeks.

    I'll be sure to drop off a 'bill' to my so-called 'friend' that started this whole mess!! :Brow:
     
  6. gstewart

    gstewart Well-Known Member

    guys: since we are talking about pinion seals & crush sleeves from whom can i purchase the seal & sleeve - napa, gm, ..? does anyone have part#s for these items ?
    my car is a 72 gs with the 8.5 open rear end .
    tkx
     
  7. monzaz

    monzaz Jim

    crush sleeve and pinion seals

    On the crush sleeve -- here is how it goes... The old bearing is worn right ? requiring more crush to the sleeve to seat it in the bearing race at the proper inch lbs. torque. The crush sleeve keeps both inner and outer bearing from crushing them selves into the races and over heating with to much preload. The new bearing will actually bring the bearing away from the crush sleeve a bit because it is NEW not worn. You can try the crush sleeve, but if you tighten the pinion bolt with an impact gun and can not turn the pinion get a new one. You should be able to use an 1/2 impact ( don't leave it smacking away on it for ever just good and tight.) on it and not crush the sleeve.( unless you have a super duty one...lol) It takes 120-175 lbs. to crush that thing ( use a 5 foot bar to do my stuff... bad back ok). They are cheap and you can get them off the evil bay too.

    The seal should not be a problem to get at all I will get you a part number asap tomorrow. Jim
     
    Last edited: Jan 3, 2005

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