1. Welcome to Jeeps.net!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Jeep discussion topics
    • Transfer over your build thread from a different forum to this one
    • Communicate privately with other Jeep owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Front diff. whining noise

Discussion in 'General Jeep Discussion' started by ElderBot5000, Aug 16, 2017.

  1. Aug 16, 2017 at 9:40 AM
    #1
    ElderBot5000

    ElderBot5000 [OP] New Member

    Joined:
    Aug 16, 2017
    Member:
    #1791
    Messages:
    2
    Gender:
    Male
    Vehicle:
    95 Grand Cherokee 5.2 l
    I have a 95 Grand Cherokee all wheel drive I bought last year. When I bought it the front drive line was missing. I purchased a new one and when it's in I can hear a whining noise coming from the front diff. The faster I drive the higher pitch the noise gets. When the drive line is not in there is no noise. What are the possibilities that I should be looking at repairing. Any information would be helpful, thank you.
     
  2. Aug 16, 2017 at 10:00 AM
    #2
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine Moderator

    Joined:
    Jul 19, 2016
    Member:
    #2
    Messages:
    4,048
    Gender:
    Male
    Welcome! Is the fluid level correct in the differential?
     
  3. Aug 16, 2017 at 10:07 AM
    #3
    ElderBot5000

    ElderBot5000 [OP] New Member

    Joined:
    Aug 16, 2017
    Member:
    #1791
    Messages:
    2
    Gender:
    Male
    Vehicle:
    95 Grand Cherokee 5.2 l
    Yes, I replaced the fluids in the front and rear diffs and the transfer case when I first put in the front drive line. Also the whining noise is louder under load,accelerating or decelerating. when I'm maintaining a speed its much quieter.
     
  4. Aug 16, 2017 at 10:18 AM
    #4
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine Moderator

    Joined:
    Jul 19, 2016
    Member:
    #2
    Messages:
    4,048
    Gender:
    Male
    Sounds like a bearing. Hopefully someone will be able to offer more assistance
     
    JKBob 25 and OFFGRID like this.
  5. Aug 16, 2017 at 6:44 PM
    #5
    OFFGRID

    OFFGRID Well-Known Member

    Joined:
    Oct 3, 2016
    Member:
    #317
    Messages:
    2,018
    Gender:
    Male
    First Name:
    Peter
    Houston
    Vehicle:
    1979 Jeep CJ7, 258, TH350, NP208
    Howell fuel injection, header, HEI distributor, TH350, NP208, SOA lift with YJ springs in the front & GW springs in the Rear. AMC20 with G2 1 piece chromos trussed, Dana 30 with G2 chromos and 760x ujoints and MM Stainless Hubs, Geared 4.56. Tom Woods shafts, Metal cloaks, Caged, 37" Toyo MTs.
    Yep. What Chris said. Sounds like a bearing. What do you mean by "drive line"? Are you talking about the drive shaft? If so, and you had no noise without the shaft and then noise with the shaft, the only change in motion that you have made is now that the front outputshaft and bearing on the Tcase are turning. That would be my first suspect. My second would be the pinion bearing on the front diff maybe. I say maybe because I would think that the front diff would squeal with or without the shaft, but just maybe it needs a little preload from the drive shaft to cause it to squeal.
     
To Top