Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

14 bolt problems

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by CK5, Oct 30, 2001.

  1. CK5

    CK5 In my underwear Administrator Premium Member GMOTM Winner Author

    Joined:
    May 19, 1999
    Posts:
    21,623
    Likes Received:
    701
    Location:
    CO
    Last night when I pulled the diff cover off part of what I think might be a pinion bearing was laying on the bottom of the housing.
    A shop told me about the only way the pininon bearing could come out was if the internal casting part was cracked which would allow it to flex and throw the bearing, not sure yet but if this is the case I would need another 14-bolt - not good.
    Any other thought or ideas ? I didn't get a chanch to look at the side bearings but will on Saturday, and it drives fine.

    Steve

    Bandwidth FREE ZONE

    Mall-Running poseur 4x4 with curb-feelers
     
  2. Greg72

    Greg72 "Might As Well..." Staff Member Super Moderator

    Joined:
    Mar 5, 2001
    Posts:
    15,683
    Likes Received:
    1,392
    Location:
    642 Days to BB2018
    Maybe it's part of a sawzall blade?.....[​IMG]

    Didn't you just finish doing the "shaving procedure" on that pig?

    I don't have any serious ideas....hope it's nothing expensive!

    -Greg72
     
  3. CK5

    CK5 In my underwear Administrator Premium Member GMOTM Winner Author

    Joined:
    May 19, 1999
    Posts:
    21,623
    Likes Received:
    701
    Location:
    CO
    Yeah, I just shaved it, it was to easy to do not to do it, I hope I don't have to get a new houseing.

    Steve

    Bandwidth FREE ZONE

    Mall-Running poseur 4x4 with curb-feelers
     
  4. CK5

    CK5 In my underwear Administrator Premium Member GMOTM Winner Author

    Joined:
    May 19, 1999
    Posts:
    21,623
    Likes Received:
    701
    Location:
    CO
    And how the hell could I trash a 14 bolt with just 37's

    Steve

    Bandwidth FREE ZONE

    Mall-Running poseur 4x4 with curb-feelers
     
  5. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

    Joined:
    Jul 23, 2000
    Posts:
    36,170
    Likes Received:
    1,379
    Location:
    E-town baby!
    Could it be part of one of the adjuster rings that broke maybe? I would think you'd have an awefully hard time breaking anything in a 14 bolt.

    Rene

    <font color=green>Dyslexics of the world...UNTIE!</font color=green>
    <a target="_blank" href=http://coloradok5.com/gallery/project_T2> tRusty pics...</a>
     
  6. CK5

    CK5 In my underwear Administrator Premium Member GMOTM Winner Author

    Joined:
    May 19, 1999
    Posts:
    21,623
    Likes Received:
    701
    Location:
    CO
    NO, it was part of a bearing and bearings that were laying in the bottom.

    Steve

    Bandwidth FREE ZONE

    Mall-Running poseur 4x4 with curb-feelers
     
  7. ftn96

    ftn96 1/2 ton status

    Joined:
    Sep 26, 2000
    Posts:
    3,238
    Likes Received:
    0
    Location:
    Nashville Tn
    Especially in a "Mall-Running poseur 4x4 with curb-feelers"
    [​IMG]

    Surgeon General's Warning:
    Viagra and steroids may be harmful to your spouse![​IMG]
    <a target="_blank" href=http://www.nashvillek5.freeservers.com>www.nashvillek5.freeservers.com</a>
     
  8. CK5

    CK5 In my underwear Administrator Premium Member GMOTM Winner Author

    Joined:
    May 19, 1999
    Posts:
    21,623
    Likes Received:
    701
    Location:
    CO
    Most have been when I drove over all those little speed bumps.
    I think it is called an pinion end support bearing.

    Steve

    Bandwidth FREE ZONE

    Mall-Running poseur 4x4 with curb-feelers
     
  9. californiak5

    californiak5 1/2 ton status

    Joined:
    Oct 25, 2000
    Posts:
    820
    Likes Received:
    0
    Location:
    Oceanside, Ca. 92056
    Yep, I bet that is it. Too many speed bumps without locking in the hubs put too much presure on the 14 bolt. [​IMG]

    Doesn't the Pinion suport bearing have a bunch of little needle bearings in it? Is that what you found in the bottom? I really don't see how those would seperate from the bearing itself. I hope it is something easy for you. Keep us posted.

    See Ya,
    Keith

    [​IMG] <font color=green>Born to Drive My K5</font color=green> [​IMG]

    <a target="_blank" href=http://coloradok5.com/gallery/californiak5>CaliforniaK5's Pictures</a>
     
  10. CK5

    CK5 In my underwear Administrator Premium Member GMOTM Winner Author

    Joined:
    May 19, 1999
    Posts:
    21,623
    Likes Received:
    701
    Location:
    CO
    Roller bearings

    Steve

    Bandwidth FREE ZONE

    Mall-Running poseur 4x4 with curb-feelers
     
  11. BlueBlazer

    BlueBlazer 1/2 ton status

    Joined:
    Feb 15, 2001
    Posts:
    1,940
    Likes Received:
    0
    i suppose its possible that the bearing cage broke and thats how the bearings came out. The large pinions bearing is now supporting all the load and I dont know how long that might last. You should be able to see the inner support bearing with the cover off, does it look like the cage is still intact.

    82 K5, 6.2L Diesel, sm465, np205, 14 bolt welded, 8 lug 10 bolt lock right, 410 gears, 35" Mud Kings
    SPEAK SOFTLY AND DRIVE A BIG TRUCK
     
  12. pcorssmit

    pcorssmit 1/2 ton status

    Joined:
    Jan 2, 2001
    Posts:
    1,346
    Likes Received:
    0
    Location:
    Denver, CO
    Whats the history of that rear end? ie rebuilt, junk yard spec?

    Pete

    '83 K5, 350 TBI (ex 6.2), 700R4, NP208, Dana 60/14 bolt, 4.56s, Detroits, 3" lift, 15-39.5x15 TSLs
    '97 Dodge 2500 4x4 CC LB Sport, Cummins 5 spd
     
  13. CK5

    CK5 In my underwear Administrator Premium Member GMOTM Winner Author

    Joined:
    May 19, 1999
    Posts:
    21,623
    Likes Received:
    701
    Location:
    CO
    Rebuilt from a junkyard

    Steve

    Bandwidth FREE ZONE

    Mall-Running poseur 4x4 with curb-feelers
     
  14. Ruthiford

    Ruthiford Registered Member

    Joined:
    Jun 25, 2001
    Posts:
    37
    Likes Received:
    0
    Location:
    Denver Co
    I was under the impression that the support bearing was only there to help support the pinnion when the main pinnion bearings get a lot of miles on them.You didnt by chance change the yoke or seal with out putting in a new crush collar (or did they set the preload right when they set up the gears)
     
  15. HarryH3

    HarryH3 1 ton status Author

    Joined:
    May 31, 2000
    Posts:
    10,384
    Likes Received:
    2
    Location:
    Georgetown, TX
    Steve, did you actually find rollers in the case or just bearing retainer parts? The 2 main pinion bearings have tapered rollers, like a wheel bearing. The bearing that supports the end of the pinion shaft has straight rollers.

    That pinion shaft end support bearing had spit out bearing retainer parts in my 14-bolt when I bought the truck it was in. You can replace that bearing by just pulling the pinion out the front of the housing (just remove those bolts that hold it in place, don't remove the yoke). Keep any shims between the housing and the pinion support in order so you can reinstall them exactly as they came out. Then yank out the old bearing and install the new one. Then resintall the pinion shaft, no adjustments required (and Executioner won't need to use that special tool of his to inspect your rear end!) [​IMG]

    That end bearing has a small retainer that looks like some kind of black wire. The retainer on the other 2 bearings is a beefy steel cage like you would find on a wheel bearing.

    If there are actually bearing rollers laying in the bottom of the housing, then that could be a bit more ugly. I can't imagine that they could exit their raceways without leaving a bit of carnage in their wake. [​IMG]



    <font color=black>HarryH3 - '75 K5</font color=black>
    <a target="_blank" href=http://www.angelfire.com/super/ThunderTruck>www.angelfire.com/super/ThunderTruck</a>
    It's a great day to be alive...
     
  16. CK5

    CK5 In my underwear Administrator Premium Member GMOTM Winner Author

    Joined:
    May 19, 1999
    Posts:
    21,623
    Likes Received:
    701
    Location:
    CO
    Found rollers and retainer parts, I did clearly see that there was no bearing on the very end of the pinion shaft.

    Steve

    Bandwidth FREE ZONE

    Mall-Running poseur 4x4 with curb-feelers
     
  17. HarryH3

    HarryH3 1 ton status Author

    Joined:
    May 31, 2000
    Posts:
    10,384
    Likes Received:
    2
    Location:
    Georgetown, TX
    Actually, that bearing is there to prevent the pinion gear from deflecting away from the ring gear under severe loads. [​IMG]

    <font color=black>HarryH3 - '75 K5</font color=black>
    <a target="_blank" href=http://www.angelfire.com/super/ThunderTruck>www.angelfire.com/super/ThunderTruck</a>
    It's a great day to be alive...
     
  18. HarryH3

    HarryH3 1 ton status Author

    Joined:
    May 31, 2000
    Posts:
    10,384
    Likes Received:
    2
    Location:
    Georgetown, TX
    The housing is probably OK. But the end of the pinion shaft may have been gouged. You'll have to pull it out and take a look to see if it's still serviceable. [​IMG]

    <font color=black>HarryH3 - '75 K5</font color=black>
    <a target="_blank" href=http://www.angelfire.com/super/ThunderTruck>www.angelfire.com/super/ThunderTruck</a>
    It's a great day to be alive...
     
  19. Shawn

    Shawn 1/2 ton status Premium Member Author

    Joined:
    Feb 17, 2000
    Posts:
    1,753
    Likes Received:
    5
    Location:
    5280'
    You hit those speed bumps pretty hard Steve. The 14 bolt axle was never designed for that! [​IMG] I have my garaged locked up tight in case you get any wild axle swapping ideas. [​IMG]

    Hopefully you won't need a new housing. I'm sure its just the bearing. If you need another housing and require help with picking one up, sorry, I'll be busy that day. [​IMG] -j/k- I clearly remember busting my ass in Axledicks yard when we got the one you have now.



    Shawn
    87 K5
    few mods [​IMG]
    <a target="_blank" href=http://www.off-road.com/chevy>www.off-road.com/chevy</a>
     
  20. Sparky

    Sparky 1/2 ton status

    Joined:
    Aug 20, 2000
    Posts:
    423
    Likes Received:
    0
    Location:
    San Antonio(summer) Texas A and M (school year)
    You say it drives right? Why not take it out and get moving for a while so anyplace with a bad bearing will get hot? Get out and feel around the pinion for abnormal amounts of heat. That way you might find out what your problem is for sure. Just a thought, hope it helps.

    Or you could just trade me stratit up for my stocker 12 bolt! [​IMG]

    Sparky

    When all else fails... Check the blinker fluid.
    78 K-5
    <P ID="edit"><FONT class="small">Edited by Sparky on 10/30/01 05:58 PM.</FONT></P>
     

Share This Page