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How to get a pinion nut loosened: the last resort way

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Sidepipes, Apr 27, 2003.

  1. Sidepipes

    Sidepipes 1/2 ton status

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    Just thought I'd share my weekends experience in case it might help someone out.... most of the experienced guys probably know this anyways.

    After a mud run on Easter Friday my rear end developed a bad front pinion seal leak so I figured I better fix it before I starved the front bearing of oil.

    I tried to undo the pinion nut the proper way with a torque wrench( so you know what to torque it back up to) with no luck.... 150 ft-lbs of torque and beyond and no luck.

    Next stop, a 36" breaker bar.... no luck.... a 36" breaker bar with a length of pipe.... still no luck.

    So I try what I really don't want to try.... Iput the breaker bar up against the P.S. leaf spring, tie it to the spring with a bungee cord( only to keep the bar in place while I move it forward), lock the hubs, put it in 4-high and move it try and move it forward.

    It finally broke free on the 4th try. Really scary because I could have broke the pinion, the threads on the piinion or the pinion nut..... but it was a last resort to get the nut off.

    Alls well now, the leak is gone..... not really sure if I put enough torque on the nut but everything seems alright now.
     
  2. tori89k5

    tori89k5 1/2 ton status

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    Next time you might try an impact gun. Even if you had to drive to a near by shop, have them zip it loose, then put it back on by hand till you drove home...

    But a good fix at any rate. /forums/images/graemlins/thumb.gif glad it worked out for the best.
     
  3. Sidepipes

    Sidepipes 1/2 ton status

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    Top of the line Mac Tools impact wouldn't get it off. I 've seen this gun take off a lot of stuff and it wouldn't take this off.
     
  4. Executioner

    Executioner 1/2 ton status

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    Temp. Ft. Walton Beach Fl. home=Tucson, Az.
    Someone used Loctight ?
    Some Loctight will lossen up with Heat.
     
  5. ramjet gmc

    ramjet gmc CK5 Staff Staff Member Moderator GMOTM Winner

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    [ QUOTE ]
    Top of the line Mac Tools impact wouldn't get it off. I 've seen this gun take off a lot of stuff and it wouldn't take this off.

    [/ QUOTE ]
    i 2nd that
    i tryed my thunder gun on mine and no luck but a pipe will do it every time /forums/images/graemlins/rolleyes.gif
     
  6. 85burbanator

    85burbanator 1/2 ton status

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    has anybody had there impact explode on them? mine did today when i was removing the axel shafts from my 14bff so i could remove the stupid gov lock carrier. scared the hellouta me. but my dad fixed it and it worked again. i think its time for a new one.
     
  7. K5MONSTERCHEV

    K5MONSTERCHEV 1/2 ton status

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    MAC, no way, Ingersoll-Rand!!
     
  8. 89GMCSuburban

    89GMCSuburban 1/2 ton status

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    My Rockwell 1/2" drive doesn't usually fail to get something off, but if it does, I got the 3/4" to get it off. That 3/4" will break your arms if you're not careful.
     

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