Jump to content

Rear end locking up

William Berglof
 Share

Recommended Posts

William Berglof New Member

William Berglof

Posted
Posted

I'm not even sure I'm in the right place. But here goes anyway, I have a '94 GMC Sierra K1500 extended cab short box manual transmission. The problem I'm having is, the rear end is locking up. Only when I make a left hand turn or on an uneven surface when the drivers rear wheel has less weight, and locks up. But primarily when making left turns. It will lock the rear end to the point of skidding tires on dry pavement and sometimes even stall the truck. I have had the rear brakes looked at, adjusted, drums turned, new springs installed. I have had the rear diff looked at by GM professionals as well as differential experts. No one can figure out the problem. Thank you in advance for any help. 

richard wysong Senior Enthusiast

richard wysong

Posted
Posted

did they pull the cover to look at the gears? sure sounds like the spider gears are the problem

William Berglof New Member

William Berglof

Posted
  • Author
Posted

Yes, they did pull the diff cover. Then very carefully and slowly rotated the wheels while inspecting the internals. Nothing seemed out of place. 

  • 4 weeks later...
Brian Lindsey Enthusiast

Brian Lindsey

Posted
Posted

your axle is probably moving side to side , im guessing only , but i would say you have a bad axle or bad bearings for the axle

  • 3 weeks later...
RayRob65 New Member

RayRob65

Posted
Posted

I had a 1990 GMC 4X4 work truck that would lock up and finally had to replace the locking differential unit in it. 

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.5k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,943
    Total Members
    8,960
    Most Online
    Dom Colussi
    Newest Member
    Dom Colussi
    Joined

  • Who's Online   4 Members, 1 Anonymous, 591 Guests (See full list)

  • Latest Articles

  • Posts

    • Grumpy Bear
      PF63 Oil Filters Going Away?

      By Grumpy Bear · Posted

      The guy that owns K&P filters last I checked in with him has over 300,000 miles on his Dodge base Hemi using his own 35 micron absolute stainless mesh filter from its first oil change.    The GM study I've posted a dozen times shows the relationship in engine life based in multiples of base units, not miles or years. That is the base unit is the number of miles the motor ran using the reference filter efficiency.    The above two paragraphs dismantle anecdotal arguments IF one changes oil often enough to prevent particle formation and the motor is in otherwise good shape. That is not full of silica (no air filter) or suffering a metallurgical issue that is not part of the lubrication discussion. Poor heat treat in example.   Data from UOA's I've reviewed from more than a few engines can show remarkably broad variations in oil cleanliness using the exact same filter over the course of an engines life.     Lastly there is the common sense of it. Wear debris WILL circulate the engine BEFORE it ever sees a filter in route to that filter and WILL harm the pump which NEVER sees filtered oil.    Alpha question then becomes, given the facts, how long do you believe is a reasonable service life from a vehicle you are certain you will not pass down? That is the junk yard will be it's resting place when you're done with it? (the moral issue most don't care about).    Omega question is then how diligent are you prepared to be in general mechanical, air & oil maintenance? Preventing particulates and keeping them sufficiently dilute; preventing the precursors from generation, amalgamation and precipitation.    If I get a good look at the engine bay of a vehicle I have a fair idea of the owners commitment to the inside of the power train. That 30 micron WIX is still more efficient than a sieve.                 
    • Tyler Gibbs
      PF63 Oil Filters Going Away?

      By Tyler Gibbs · Posted

      It also depends on what criteria someone is using for “best” when talking filters.  Are we going off best efficiency?   Best quality/QC?  Etc. because the two may not mutually exclusive.  
    • Tyler Gibbs
      PF63 Oil Filters Going Away?

      By Tyler Gibbs · Posted

      They’re not the same wiz as 10-15 years ago.  QC has fallen pretty hard.  The XP line was never good though in the first place.    https://bobistheoilguy.com/forums/threads/wix-filter-rusted-through.386492/post-6991372   https://bobistheoilguy.com/forums/threads/i-ve-used-my-last-wix-filter.27299/   https://bobistheoilguy.com/forums/threads/looking-for-a-better-replacement-for-wix-51258.403977/   https://bobistheoilguy.com/forums/threads/convince-me-in-using-the-purolator-boss.401537/post-7420147   the forums are littered with posts and examples of not great wix filters the last couple years 
    • Atlas
      Joke Thread

      By Atlas · Posted

      *Your      
    • CamGTP
      PF63 Oil Filters Going Away?

      By CamGTP · Posted

      I'd guess that it's because they are Mann-Hummel filters since about 2016, they own Wix and are mostly all made in China now. 

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...