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  1. #1
    Sr. Apprentice
    Join Date
    Jun 2010
    Western MA
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    Default Replacing Rear Wheel Stud '08 K2500 8-lug with 6.6

    Looking for confirmation - working on a 2008 GMC 6.6 Duramax K2500 with disk rear disk brakes .

    Need to replace a wheel stud - looks like parking brake leaves no room to install a stud.

    Does the axle have to come out to replace a wheel stud? Which locknut socket do I need? OTC 1929? or other? Will the inner hub seal survive or should it be swapped out (dry now).

  2. #2


    Are you sure theres no "one spot" that will allow you to get one in?? Seems like an awfull lot to just replace a stud. Im not familiar with the rear of 3/4 ton so sorry im no help.

    2011 Silverado CrewCab 5.3L*Ram Air Look Cowl Induction Reflexxion Hood*6" Pro Comp Lift*Flowmaster Dual exhaust*Perfect Launch Rear Diff. Cover*Led Smoke Taillights*L.E.D.Smoke 3rd Brakelight*60" L.E.D. Tailgate Bar*Rearview Mirror Reverse Camera and Sensors*Smoke Headlight Covers*Front Bumper Grill Insert*Deezee Black Alum. Diamond Rail covers*20" Ultra Motorsports Rims wrapped with 35.5"B.F. Goodrich Tires*Inchannel Raingaurds*CAI*Bullydog GT Tuner*Alpine Amp*Boss 6x9's*Boston Acoustic Subs*Terrantula Tweeters*Custom Sub box*Red Led Interior Accents*5% Ultimacool duo tint rear window and doors, 20% front doors*Custom Vinyl Graphics*Demolded*Debadged*Painted drums and calipers*
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  3. #3
    Sr. Apprentice
    Join Date
    Jun 2010
    Western MA
    Blog Entries


    Thanks for answering. The studs are too long - parking brakes are too close to the back of the flange. I found some info at the Duramax Forum, including the pics below. There's no access left anywhere for installing a stud - and it doesn't look like the parking brakes come apart with the flange in place.

    EDIT - I'm taking the advice below on replacing the seal - pics added

    Click image for larger version. 

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    Attached Thumbnails Attached Thumbnails NAPA Oil Seal SKF 28554.jpg  
    Last edited by arby; 10-16-2012 at 02:43 PM.

  4. #4


    I helped replace 3 studs on a friends 2009 K2500 a few months back and we couldnt figure out any way to do it without removing the axle, theres no clearance at all.
    We didnt replace the inner hub seal per advice from another friend thats a factory trained GM mechanic, he gave it 90% odds of not being needed, the next weekend we pulled the axle again to replace the seals due to leaking.
    Wont make that mistake again since the seal is cheap insurance against having to redo the job.

  5. #5


    X2 on replacing the seal. You are already there so you should just do it.

    1995 Silverado 4x4
    6" BDS Suspension Lift-3" Body Lift-Add A Leaf in rear -Trailmaster SSV Shocks-Duel Steering Stabilizer Kit -AirAid Cold air intake-
    4.56 Gears with Detroit Auburn Locker-Pro-Comp Traction Bars with duel shocks-Aluminum Skid Plate Kit-38.5" x 16.5" Mickey Thompson Baja Claws-Constant Dropping fuel gauge

    2005 Yukon XL Jet Power Programmer, Bilstein Shocks, Bilstein rear springs, Helwig Anti-sway bars, EGR Window Visors, EGR Hood Shield, Denali Headlights, Headlight harness upgrade, GE NightHawk Bulbs, White Night Rear lighting system, Russell Braided SS brake lines, PowerStop Brake pads, PowerStop cross drilled and Slotted Rotors,
    2002 Silverado ext cab 2wd (Sold)
    2003 Yukon XL (Totaled)

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