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.

Rear Differential Problem

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by **DONOTDELETE**, Jun 30, 2001.

    On Thursday night I posted that I was hearing a popping from the rearend as I was turning and It sounded like it was coming from the left rear wheel. Replies ranged from normal to spider gears might be trashed. I took off the cover today to expect to find the worse. I found nothing out of the ordinary I think, no metal particles at all or they were very little, found some clutch material in it but I do not think an absorbent amount. The gear oil did not smell burnt and the gears look great no nicks or gouges or hot spots. Maybe it is a axle bearing. So what do you guys think If the bearing checks out I guess It is normal but find it odd that I never heard it before until just recently.

    Larry86K5

    <P ID="edit"><FONT SIZE=-1>Edited by larry86k5 on 06/30/01 03:38 PM (server time).</FONT></P>
     
  1. OFFRDK5

    OFFRDK5 1/2 ton status Premium Member

    Joined:
    Oct 2, 2000
    Posts:
    1,881
    Likes Received:
    2
    Location:
    Central IL
    If I remember right you had a locker in the back? Did you add the special fluid that is required for it? Goto your local parts store and get some if you didn't. Thats the extent of my help.


    SK-15
    J**P...it's whats for dinner!
    Roads? Where we're going, we don't need any roads!
    <A target="_blank" HREF=http://SK-15.coloradok5.com>http://SK-15.coloradok5.com</A>
     
  2. It has a Auburn posi and yes I did get the additive for it but question is how much do I put in? the guy at the parts store said 4 ounces but I think he is way off.
     
  3. thatK30guy

    thatK30guy 1 ton status Premium Member

    Joined:
    Jan 12, 2001
    Posts:
    32,076
    Likes Received:
    55
    Location:
    .
    I think the '4 ounces' is for differentials only. Not the whole tubes. The 12 bolts have seals in the tubes by the brake backing plates where the big bearings are. I would say to add more to make up for the amount of fluid added to flow inside the tubes. I put some posi-lube in my 14FF and 1 tube did not work. I put another tube in and it worked fine after that. I would put another tube or bottle in if I were you, so get another 4 ounces put in and see what it does after that.

    <font color=red>I m so we Todd did.
    I m sofa king we Todd did.</font color=red>
     
  4. Prembird

    Prembird 1/2 ton status

    Joined:
    May 15, 2001
    Posts:
    811
    Likes Received:
    0
    Location:
    kc, mo.
    check the axle bearing and if it looks ok...well actually look at the brakes as you pull them off... you might have broke a spring in it or something... if it all looks good and the seal looks good then i dont know where else to look... maybe a lose bolt on the suspension or on the shock.. dont know...

    Prembird
    [​IMG] <font color=blue> If it aint</font color=blue><font color=red> LOUD </font color=red><font color=blue> Then turn it </font color=blue><font color=red> UP</font color=red> [​IMG]
     
  5. ftn96

    ftn96 1/2 ton status

    Joined:
    Sep 26, 2000
    Posts:
    3,238
    Likes Received:
    0
    Location:
    Nashville Tn
    Ok, I just had the same problem dude. I got the Auburn Hi-pro series Adn I used the Tans-x crap you get at Autozone and it all worked great for about 1500 miles and it started sounding like crap in the turns under load. So I took it all back out nothing apeared to be wrong. All my gears were right and the axles bearings were new. It had to be the LSD. SO I called Jeg's, they sent me a new one for free. Then I called Auburn in the meantime adn told them what happened ans they said the Trans-z crap will not work, do to the high spring rate in these models. So I went and bought the high dollar GM stuff that they recommended, and I have been 1500 miles since and have had no more noises.

    HELP! I'm under my truck and I can't reach my beer![​IMG]
    <A target="_blank" HREF=http://www.nashvillek5.freeservers.com>http://www.nashvillek5.freeservers.com</A>
     
  6. Hey I bought that Autozone Trans X stuff but had a feeling I should be buying the GM additive. I live in Kansas City does any one know of a dealership that is open on Sunday where I could buy the good Limited Slip Additive?

    Larry86K5
     
  7. ftn96

    ftn96 1/2 ton status

    Joined:
    Sep 26, 2000
    Posts:
    3,238
    Likes Received:
    0
    Location:
    Nashville Tn
    I bought my stuff from a Car Quest store. If you have those there

    HELP! I'm under my truck and I can't reach my beer![​IMG]
    <A target="_blank" HREF=http://www.nashvillek5.freeservers.com>http://www.nashvillek5.freeservers.com</A>
     

Share This Page