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How To: Upgrade and Beef-up 5R55W/S Transmissions

Discussion in 'Modified 2006 - 2010 Explorers' started by The Electrician, May 30, 2011.

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    1. Phantom

      Phantom Active Member

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      Anyone have any experience with just installing the K5R55W/N/S shift correction kit? Does the transmission have to come out to install the kit?
      How about the TransGo shift kit?
       
      Last edited: June 13, 2015
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    3. The Electrician

      The Electrician Active Member

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      I tried both and I would never recommend TransGo Kit, because it wont address the issue of poor lubrication through the cooler and parts, especially the O.D. Planetary.

      TransGo Kit is a valve body correction kit and you can install it while the transmission within the vehicle

      Maybe TransGo kit is good for light weight Mustangs, but it is never good enough for heavy Explorers.


      Regarding Superior K5R55W/N/S Kit. You need to remove the transmission out and to disassemble it for the installation of the kit.
       
      Last edited: June 13, 2015
    4. Phantom

      Phantom Active Member

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      Was only looking at it for my 03 Sport Trac, which I do almost no towing with.
       
    5. SVT_Lewis

      SVT_Lewis New Member

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      Does the OEM rebuild come with a new front pump? I ordered the superior kit, and OEM rebuild. I believe it's my front pump going out - once transmission gets hot, all gears are inoperable and vehicle does not move whatsoever. Can't remember what code it throws off hand.
       
    6. The Electrician

      The Electrician Active Member

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      Nope, it doesn't come with a new front pump. the pump is sold saperately.
       
    7. SVT_Lewis

      SVT_Lewis New Member

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      You wouldn't happen to have a part number would you?
       
    8. The Electrician

      The Electrician Active Member

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      6w4z-7a103-aa
       
    9. Phantom

      Phantom Active Member

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      One other question, should the bands be adjusted when dropping the pan for a fluid and filter change or left alone? Only real issue at the moment in the hard downshift when easing into a stop. Thanks.

      This is on my 2007.
       
    10. 2000StreetRod

      2000StreetRod Staff Member Moderator Elite Explorer

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      TFT & Level 10 rebuild kit

      Do you monitor your transmission fluid temperature (TFT)? It must be difficult to keep it at a reasonable level driving in your climate? Maybe excess TFT is partly responsible for the early failure of your TCI Ultimate Master Racing Overhaul Kit.

      How is the Level 10 rebuild kit holding up? Do you think it is superior to the OEM rebuild kit?
       
    11. dwoods

      dwoods New Member

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      Guys!! I just need the info on rebuilding mine back to stock, do I do TC? Do I do solenoid packs? Do I do the sleeve kit on valves?? Please help me!!!
       
    12. jd4242

      jd4242 Elite Explorer

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      I want to know this also??

      It appears he never installed the ""level 10 kit"" but used the OEM because the "level 10" didnt come in time and once it did come,sounds like he left the OEM kit installed instead..
       
    13. JW

      JW Third Gen Collector Elite Explorer

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      Some of the links in The Electrician's original post are dead. I'm pursuing a transmission build for my 2003 (and eventually for my 2004 as well) so I've been working on finding current sources for the listed parts. Link to Google Sheet
       

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