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14b ff problem

Discussion in 'The Garage' started by dieselponyexpress, Apr 3, 2005.

  1. dieselponyexpress

    dieselponyexpress 1/2 ton status

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    I'm hearing some noise from my rear axle (14b ff detroit) driver's side. It's not the "detroit bang", but a squealing sound, like a bearing maybe.
    Also my tire is rubbing on the ground if driving left turns.
    Again, I don't mean the detroit locker behaviour - I'm driving the truck 7 years as DD and know how the locker feels.
    On right turns everything seems allright.

    Oil is filled up, but a little contaminated (gray).

    I pulled the left axle shaft and discovered nothing unusual but I missed the few splashes of oil coming out of the tube. Could there be some kind of plugging between the diff and the outer bearings?

    Should I change the wheel bearings as a first step?
     
  2. poorboy1

    poorboy1 Registered Member

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    does the hub make any noise when you spin it?
     
  3. dieselponyexpress

    dieselponyexpress 1/2 ton status

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    No noise with only the hub turning (axleshaft removed).

    But there seems to be some unusual sounds with the axle lifted and tc in neutral. It's a little difficult to determine because of the locker noise.

    I will pull the cover during the next days and inspect the diff bearings.

    I have a dial indicator for setting backlash, but no wrench for the adjusting nuts. Do I need this wrench?
    Any other special tools or parts required?

    Other items to be serviced while I'm that deep inside?


    Thanks in advance.
     
  4. dieselponyexpress

    dieselponyexpress 1/2 ton status

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  5. dieselponyexpress

    dieselponyexpress 1/2 ton status

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    wow!
    Nobody ever changed diff bearings on a 14b!! :crazy:
     
  6. dleroy43

    dleroy43 1/2 ton status GMOTM Winner

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    Sorry would help you if I knew, just look at tech sections of truck sites like this one and start taking things apart :dunno:

    I have to send my truck back to CA next week so I wont be able to drive with you this summer :frown1:
     
  7. Eric M.

    Eric M. 1/2 ton status

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    Pull your drums off and do a visual inspection of the hub berings (check the inner race of the berings). Pull the cover off and take a look at the carrier berings - these will be a little more difficult to inspect without pulling everything apart, but if they are what's making that much noise, you should see some damage.

    Report back with your findings.


    Eric M.
     

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