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SlipYoke leaking trans fluid. O-Ring Replacement?

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    #1

    SlipYoke leaking trans fluid. O-Ring Replacement?

    I found out where my trans fluid leak is coming from. I could see it trickling off of the bottom of the U-Joint so I know it's not the tailshaft seal. Gadget suggested that it could be the O Ring and I wanted to see if anyone else knew as well. I read about a few different versions of people having this issue so I'm looking for some clarification. Some people made it sound as if the O Ring is in the tailhousing. Some suggested there is a vent hole in the backside of the slipyoke that only leaks if the O Ring in the tailhousing goes bad. Others suggested there is a "freeze plug" of some sort in the slipyoke. Whatever the case may be I'm hoping to fix it so if anyone can give me an idea where to buy the part and how to replace it I'd appreciate it. Thanks.
    87' Lincoln Town Car Stars + Stripes. Explorer GT40P, Anderson B31 Cam, Shorty Headers, FRPP 1.6 Rockers, A9L, Sn95 T5 Trans, 3:55 Limited Slip, GNX Rear Springs, LSC Turbines, 1.5 wheelspacers, Full Custom Dual 2.5/Flowmasters, 00 P71 Airtube, 19lb calibrated Maf, Summit Alum Radiator, King Cobra Clutch, Short throw Shfter, Energy Susp Trans Mount,
    Mods to come: Big Brake/Poly Front Swap, PI Front Swaybar, Addco 650 Rear Swaybar, Boxed Upper Rear Control Arms, 351/Alum Heads, FRPP Valve Covers,
    Tags: None
    #2
    This could be a situation where you just take it to the transmission shop and have them deal with it.

    Seriously, people are so fuckin' scared of needing a $$$$ complete transmission rebuild $$$$ that they won't take the goddamn thing in to have it looked at and get a comparatively cheap repair done. It could be a $60-120 job, or you could have them at least tell you what part it is for a diagnostic fee, and maybe even order it through them if it's something you want to tackle yourself.
    ,
    Slicktop '91 GS HO 4.30 rear. '82 Mark VI Tudor HO, '90 F-150 XLT, '62 project Heep, '89 Arizona Waggin' and '88 donor in PA, getting combined.

    Comment

      #3
      I'm not afraid to bring it to a trans shop. I'm too broke to bring it to a trans shop! It's probably a $5 repair that I can do with my eyes closed. That's what these forums are for. Learning to repair your car yourself.
      Originally posted by sxcpotatoes View Post
      This could be a situation where you just take it to the transmission shop and have them deal with it.

      Seriously, people are so fuckin' scared of needing a $$$$ complete transmission rebuild $$$$ that they won't take the goddamn thing in to have it looked at and get a comparatively cheap repair done. It could be a $60-120 job, or you could have them at least tell you what part it is for a diagnostic fee, and maybe even order it through them if it's something you want to tackle yourself.
      87' Lincoln Town Car Stars + Stripes. Explorer GT40P, Anderson B31 Cam, Shorty Headers, FRPP 1.6 Rockers, A9L, Sn95 T5 Trans, 3:55 Limited Slip, GNX Rear Springs, LSC Turbines, 1.5 wheelspacers, Full Custom Dual 2.5/Flowmasters, 00 P71 Airtube, 19lb calibrated Maf, Summit Alum Radiator, King Cobra Clutch, Short throw Shfter, Energy Susp Trans Mount,
      Mods to come: Big Brake/Poly Front Swap, PI Front Swaybar, Addco 650 Rear Swaybar, Boxed Upper Rear Control Arms, 351/Alum Heads, FRPP Valve Covers,

      Comment

        #4
        Originally posted by sxcpotatoes View Post
        This could be a situation where you just take it to the transmission shop and have them deal with it.

        Seriously, people are so fuckin' scared of needing a $$$$ complete transmission rebuild $$$$ that they won't take the goddamn thing in to have it looked at and get a comparatively cheap repair done. It could be a $60-120 job, or you could have them at least tell you what part it is for a diagnostic fee, and maybe even order it through them if it's something you want to tackle yourself.
        Bringing a 5sp swapped Town Car to a transmission shop would be a waste of time. They probably wouldn't even touch it.
        2020 F250 - 7.3 4x4 CCSB STX 3.55's - BAKFlip MX4
        2005 Grand Marquis GS - Marauder sway bars, Marauder exhaust, KYB's
        2003 Marauder - Trilogy # 8, JLT, kooks, 2.5" exhaust, 4.10's/31 spline, widened rear's, metco's, addco's, ridetech's 415hp/381tq
        1987 Colony Park - 03+ frame swap, blown Gen II Coyote, 6R80, ridetechs, stainless works, absolute money pit. WIP

        Comment

          #5
          I've never taken any vehicle to a transmission shop that wasn't diagnosed with needing a total rebuild. At least one of those vehicles went 6 more years before dying.
          There are good places out there, I used to know one in Broken Arrow, OK that did fantastic work. Just keep in mind that asking most transmission shops if your transmission ought to be rebuilt is like asking a dog if it's hungry. The answer is almost always "yes". Contact some of your local car guys and see who they recommend first.
          Owner of the only known 5 speed box wagon with a lift kit.
          AKA, Herkimer the Hillbilly SUV.



          Axle codes
          Open/Lock/Ratio #
          -----------------------
          G / H / 2.26
          B / C / 2.47
          8 / M / 2.73
          7 / - / 3.07
          Y / Z / 3.08
          4 / D / 3.42
          F / R / 3.45
          5 / E / 3.27
          6 / W / 3.73
          2 / K / 3.55
          A / - / 3.63
          J / - / 3.85

          Comment

            #6
            Does the slip yoke have a hole in the center of it? If it does you have to find a way to plug the hole so it won't leak. T5 yokes don't have a hole in the center.
            Matt

            Deep Jewel Green/Mocha 1993 Grand Marquis LS

            Dual exhaust w/ Thrush Welded mufflers, 17x8 bullits, KYB shocks, Air Lift springs, Draw Tite Class II trailer hitch, and new valve seals @ 116,000 mi.

            Comment

              #7
              Good question. It very well may have a hole, but I am suspecting that Gadget's suggestion about an O-ring is probably on to something as well. I'll look . Thanks.
              Originally posted by 5.0 bird View Post
              Does the slip yoke have a hole in the center of it? If it does you have to find a way to plug the hole so it won't leak. T5 yokes don't have a hole in the center.
              87' Lincoln Town Car Stars + Stripes. Explorer GT40P, Anderson B31 Cam, Shorty Headers, FRPP 1.6 Rockers, A9L, Sn95 T5 Trans, 3:55 Limited Slip, GNX Rear Springs, LSC Turbines, 1.5 wheelspacers, Full Custom Dual 2.5/Flowmasters, 00 P71 Airtube, 19lb calibrated Maf, Summit Alum Radiator, King Cobra Clutch, Short throw Shfter, Energy Susp Trans Mount,
              Mods to come: Big Brake/Poly Front Swap, PI Front Swaybar, Addco 650 Rear Swaybar, Boxed Upper Rear Control Arms, 351/Alum Heads, FRPP Valve Covers,

              Comment

                #8
                I rebuilt 1 T5 dont remember an O-ring in the tail shaft just the rear seal.
                Scars are tatoos of the fearless

                Comment

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