Rear output shaft seal leak

Discussion in 'Transfer Cases' started by aleebee156, Sep 11, 2017.

  1. aleebee156

    aleebee156 I'm Awesome

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    Hey guys,

    See photos attached. I want to confirm what you all think this leak is from. Output shaft seal? Should I be looking to replace just the seal, or the seal and the slip yoke? Never broken into t-case and driveshaft work much so wanna confirm before i buy parts/start taking things apart. Also attaching links to parts.

    Slip Yoke (either from summit or rock auto, same part)
    https://www.summitracing.com/parts/rnb-697-502/overview/
    http://www.rockauto.com/en/moreinfo.php?pk=1268745&cc=1051175&jsn=506

    Seal
    http://www.rockauto.com/en/moreinfo.php?pk=429347&cc=1051175&jsn=503

    Im unsure if the Slip Yoke in each of the links above comes with the seal or not, a little confusing. emailed rock auto and they were of no help.

    Let me know your thoughts, thanks.

     
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  2. dylan5299

    dylan5299 OBS Enthusiast

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    Cant see your photos. Says I don't have permissions. I don't know if it's any consolation, but when I bought my truck the transfer case and driveshaft had been out of it for a year at least. Slip yoke was all rusted up and seal was crap among other things. All I did was clean up the yoke by sanding it down and in between the splines making sure none were broken. Then I put in a new seal and it hasn't leaked yet. I'd buy a 15 dollar seal over and 80+ dollar yoke at least to try it any day
     
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  3. aleebee156

    aleebee156 I'm Awesome

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    First, are you able to see the photos now? I'm curious.

    Second, thanks for your input, yea good call ill just replace the seal and see how it goes. Like I said, haven't done this before but in my head Im pulling the u-joint, dropping the drive shaft, sliding out the slip yoke, pulling out the old seal, replacing with new seal, and replacing everything in reverse. Sound good? Anything I need to know about reinstalling that slip yoke?

    Do you know if that seal is one that commonly fails? just curious.
     
  4. Vodka0tter

    Vodka0tter OBS Enthusiast

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    There is also an O ring seal inside the tailhousing that can wear out and cause a leak. If you're going to replace the seal you may want to do both at the same time. It may cause a leak that exits through the vent hole in the driveshaft yoke.
     
    aleebee156 likes this.
  5. aleebee156

    aleebee156 I'm Awesome

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    Thanks I'll look more into it. Ill need to pull up a schematic of the transfer case to understand where that is and how to replace
     

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