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fill plug on a 14 bolt rear

Discussion in 'Chevy Trucks' started by xlr8, Jan 16, 2005.

  1. xlr8

    xlr8 Senior Member
    Messages: 107

    Does any one have a 14 bolt rear ? If so can you tell me the location of the fill plug . I have only found one plug which is located on the side of diff. near the drive shaft , seems to me that this level would not be enough as it is at 1/2 the pinion shaft. Any help is appreciated. Thanks
     
  2. PDQ Pete

    PDQ Pete Senior Member
    Messages: 139

    Thats the fill plug I think it takes a 3/8s rachet
     
  3. xlr8

    xlr8 Senior Member
    Messages: 107

    Thanks Pete,
    I thought it must be. Where do you drain from, the cover?
     
  4. derekbroerse

    derekbroerse 2000 Club Member
    Messages: 2,377

    Should be on the passenger side, mid height. Takes a 3/8" square, so a ratchet with extention is used.

    I recommend a few strikes with a hammer first to loosen it, then use a breaker bar to crack it loose, then follow up with the ratchet.
     
  5. xlr8

    xlr8 Senior Member
    Messages: 107

    I got the old plug out with vice grips and filled it with 80-90, and replaced the plug with a new one. This did not stop the noise it was making however. Now I'm thinking it could be the axle bearing's . I don't know whether the bearing is in the tube or if it is pressed on the axle itself . Does anybody have this truck and done this ?
     
  6. JMR

    JMR Senior Member
    Messages: 567

    You must first determine which part of the axle the noise is coming from. Axle bearings, carrier bearings or pinion bearings. If it is axle bearings the replacement is fairly straight forward. If it is carrier bearings or pinion bearings, unless you have the correct setup tools and experience :nono: , it is probably a job better left to a professional repair shop. What type of noise, when does it occur, corners, decel, accel,or what? Put the truck in the air, using jack stands, use a stethoscope and try to determine were the noise is coming from.
     
  7. xlr8

    xlr8 Senior Member
    Messages: 107

    JMR,
    I have had the truck in the air and it almost sounds like part of the brakes fell off and are just grinding themselves up, although thats not it. I did not use a stethoscope though. It seems to make this noise all the time ,and can be pretty annoying to me never mind the people whose yard I am in at 2 am. Does this sound like an axle bearing? If it is can I still plow a dozen drives before I fix it?
     
  8. JMR

    JMR Senior Member
    Messages: 567

    If it is that bad you need to fix it NOW. All those metal fillings floating around will destroy anything else in the rear diff they come in contact with. My advise stop driving it, figure out whats wrong with it and fix it NOW.
     
  9. SteveB(wi)

    SteveB(wi) Member
    Messages: 70

  10. xlr8

    xlr8 Senior Member
    Messages: 107

    Thanks for all the help . I Have fixed it , it was the axle bearings after all . The inside of the tube had so much junk(rust) in it that no oil was reaching one of the bearings , Had to heat the crap out of the tube in order to get the old bearings out but the install was very easy. Got the truck back together on Friday night then went plowing for 13 hours on Saturday and Sunday, no noise. This is a semi floater any links to a page like that ?
     
  11. SteveB(wi)

    SteveB(wi) Member
    Messages: 70