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  1. #1

    Default New guy who needs some help with my burban!

    Hey guys, been a long time reader so I thought Id ask about my suburban issue here, since Ive been tearing my hair out trying to figure it out...

    1986 suburban, 2 inch lift, 4.10 gears...
    Transmission was rebuilt last year, and the rear pinion shaft seal has given me issues ever since.
    I changed the seal out myself, and it leaked so I figured I did it wrong or it possibly had a bur or another issue.
    Took it to a local shop this time, they did it, said no issues, week later, its leaking again.
    The truck was a half ton but was converted to 3/4 axles last year.
    Seems to not have any other issues, but a slight chirp when I give it gas from the rear pumpkin. and it feels like there is a little play but nothing to serious..

    Sorry about the book of a post, but I just am tired of leaving oil tracks where ever I go and I cant seem to find one person who might have an idea, but I dont want to replace the seal again untill I figure it out...

    Thanks in advance guys and gals..
    Kev

  2. #2
    Moderator

    dwill3015's Avatar
    Join Date
    Jan 2007
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    Yacolt, Washington
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    Default

    Welcome to the site! I hope someone here can give you some advice. I have an 87 Blazer but have only had the driveline replaced and have not worked on the differential at all so no advice from me.
    Darcy
    Washington State
    2006 Silverado 2500HD LT3 4X4 CC SB Duramax LBZ
    Tuff Country 6" lift, 35" Toyo M/T's on 20" Ultra Peacemaker wheels, Quadzilla Stealth2 programmer, Diamond Eye 5" cat-back exhaust, factory Special order color Yellow.

  3. #3

    Default

    Welcome to the GMTC, Kev! Lots of Sub's on the site, so maybe someone can give you some help.


    2010 Z/71 Colorado C/C
    Black 4X4 w/5.3L V8
    ===============
    2007 Winnebago Adventurer
    w/8.1L Chevy & Allison 6spd.
    Canyon Lake, Texas

  4. #4

    Default

    Thanks guys!
    Well I broke her down again, this time really cleaning and polishing the pinion face where I noticed a really small groove...
    Its shiny enough to see yourself in now!
    But its been two days and she is holding, no leaks as of yet!

    I think with that seal that is the end of the mechanical work on the truck, shes got a new motor, new tranny, and more new parts than I can imagine at this point, so now its on to the body work and paint!

  5. #5
    Jr. Mechanic Knucklehead's Avatar
    Join Date
    Apr 2009
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    Elizabeth city NC , originaly from chesapeake VA
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    Default

    Thats awsome , i hope the problem is taken care of! Im looking forward to seeing some before and after pics on the body work and paint!
    Life's short... Drive hard!:sign0011:


    1990 GMC Suburban 4x4 w/ jasper 355
    6" Skyjacker suspension lift w/ Interco Trxus sts 36 14.5s
    on Mickey Thompson classic rims, Edelbrock
    intake, K&N 14 x 4 filter, JBA shortys
    Magnaflow exhaust, Pioneer system with
    Dual 12 inch subs... The list goes on!

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