Jump to content

Slip Yoke Weeping AT Fuild

willyr1er

By willyr1er
in Engines & Drivetrain

 Share

Recommended Posts

willyr1er Enthusiast

willyr1er

Posted
Posted

So I have a new problem that started about a week ago.  The transmission slip yoke is leaking from the small hole at the U-joint.  The rear seal is bone dry so I know that's good and not the issue.  From what I can find online, I have a bad O-ring in the tail shaft.

 

Anyone else ever has this issue and if so what was the corrective action?

 

My truck is also has 5" lift blocks in the back, not sure if maybe I don't have enough engagement for the slip yoke?  whats the best way to measure?

Nasty Senior Enthusiast

Nasty

Posted
Posted

I wouldn't want mine like that but I've seen worse 

willyr1er Enthusiast

willyr1er

Posted
  • Author
Posted

That's good to hear.  Any idea how long the yoke is with out pulling the driveshaft?

 

For now I just plugged the hole in the middle where it was leaking with some RTV, I dont know how this will effect the transmission but for now it has stopped the leak.  I found a few sites where other have done the same, some people said not to because it is a vent hole.

 

Hope the RTV keeps working until I can start to pull it apart looking for a bad O-ring.

willyr1er Enthusiast

willyr1er

Posted
  • Author
Posted

So far the RTV in the hole has held up and no leaks since.  Ive put on a good 500 miles on it.  I'll just ride it out until it starts up again.

00pooterSS Enthusiast

00pooterSS

Posted
Posted (edited)

I've replaced a few GM trans yokes for leaking. We just order a new one from GM and put them on is how we fix them. 

 

I'd use yours with the RTV for as long as it holds.

Edited by 00pooterSS
willyr1er Enthusiast

willyr1er

Posted
  • Author
Posted

Good to hear, thanks!

 

I keep looking on my driveway every day for the leak to start again.

  • 7 months later...
King chuy New Member

King chuy

Posted
Posted

I’m having the same issue I lifted my truck 6.5 and I thought it was leaking from the seal but it leaking towards the end here is a picture. 

I need help I don’t know what is the correct way to fix this.

63894B87-08BE-4D3E-8816-EE7A6AACD36A.jpeg

300 Blackout Enthusiast

300 Blackout

Posted
Posted
I’m having the same issue I lifted my truck 6.5 and I thought it was leaking from the seal but it leaking towards the end here is a picture. 
I need help I don’t know what is the correct way to fix this.
63894B87-08BE-4D3E-8816-EE7A6AACD36A.thumb.jpeg.dc2a3a0a0f1c37b5bd3b06f27709c944.jpeg

You need a new driveshaft made to the correct length to accommodate your lift. The picture of your slip yoke shows a very dangerous condition that needs to be corrected.

I had one made to the correct length and this is how much of my slip yoke is exposed with all four wheels on the ground. 2e16cc72a4edd84e77648bdc8b90a40b.jpg
  • Like 1
  • 1 year later...
Allen Ash New Member

Allen Ash

Posted
Posted

How hard is it to replace the slip yoke? I have a 2016 GMC Yukon XL that just started leaking when parked on an incline where the rear of vehicle is lower (it doesn't leak when on level ground.) The dealer quoted me almost $500 to replace it which seems like a total rip off! They also recommended replacing the front joint as well. Any advice would be greatly appreciated!

swathdiver Senior Enthusiast

swathdiver

Posted
Posted
2 hours ago, Allen Ash said:

How hard is it to replace the slip yoke? I have a 2016 GMC Yukon XL that just started leaking when parked on an incline where the rear of vehicle is lower (it doesn't leak when on level ground.) The dealer quoted me almost $500 to replace it which seems like a total rip off! They also recommended replacing the front joint as well. Any advice would be greatly appreciated!

Slip yokes don't leak.  The slip yoke oil seal might.  3/4 of an hour labor rate for mine which should be the same as yours.

davester Senior Enthusiast

davester

Posted
Posted
56 minutes ago, swathdiver said:

Slip yokes don't leak.  The slip yoke oil seal might.  3/4 of an hour labor rate for mine which should be the same as yours.

While I don't know specifically about the yoke installed on the O.P.s truck, some slip yokes do leak.  At least some of them are machined with a through-hole, and with those ones, the plug used in the hole can leak.

  • Like 2
  • 11 months later...

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • Aimatdeer
      Ac not keeping up

      By Aimatdeer · Posted

      Monday looks like a good day for the dealer to test an ac issue. Hopefully it all turns out good.
    • CamGTP
      Gas Prices

      By CamGTP · Posted

      Paid $2.72 for E85 today.
    • Atlas
      Gas Prices

      By Atlas · Posted

      Welcome back! No, it definitely doesn't pass the sniff test. Even "ceasefire" needs an alternative definition these days.    $5.29 at Kroger today
    • bluev8
      Intermittent no-code issues on 2022.5+ V8 trucks — what did the shop fail to capture?

      By bluev8 · Posted

      That makes sense, and I think you are describing the real product problem. Capturing data is the easy part. If the owner or technician has to manually dig through five minutes of millisecond-level logs, the product has already failed. The device would be at the ECM harness, not at the OBD port, so I agree that data retrieval and event marking need to be thought through carefully. The way I am thinking about the architecture is: The recorder itself should not depend on a phone, app, Bluetooth, Wi-Fi, or cloud connection to capture the event. It should always keep a local rolling buffer and lock the event locally. A button, phone app, or small cabin device would only act as an event marker. If the driver feels a stumble and presses the button 10–30 seconds later, the pre-buffer has to already contain the useful data. For data retrieval, the practical options would be a sealed service USB lead, Wi-Fi download, or a phone/cabin companion device. I would not expect the owner to remove the ECM-side module or work with raw files directly. The cloud or AI side would be for interpretation, not for capturing the event. The truck may have no connection when the issue happens, so the evidence has to be saved locally first. After that, cloud processing could help decode the data, compare it against baselines, and generate a readable report. For the first version, I would keep the automatic triggers conservative and objective: driver event marker bus-off error passive voltage drop / brownout device reset FIFO or queue overflow a normally periodic message disappearing side-to-side communication mismatch, if the topology supports that For “learning normal,” I agree with your point, but I would not want to overclaim it as automatic root-cause diagnosis at first. A realistic first step would be learned baseline comparison for that specific vehicle and operating condition. For example, a value would only be compared against similar conditions: RPM range load / MAP throttle position gear / vehicle speed coolant and oil temperature battery voltage AFM/DFM state, if decoded and validated Then the report could flag things like: this periodic message disappeared compared with its normal timing this value deviated from this vehicle’s normal range under similar conditions the same abnormal pattern repeated after the same type of event the anomaly occurred together with voltage, oil-pressure, misfire, or communication changes But I would still call that “abnormal pattern detected,” not “replace this part,” unless there is enough validated repair data behind it. So the intended product would not be “here is a huge log.” It would need to be an event package: what triggered the capture how much pre/post data was preserved what changed before and after the event whether the device itself reset, overflowed, or saw a bus error selected graphs around the event raw data only as supporting evidence From your perspective, what would make this kind of report useful instead of just another datalog? For example: What are the top 5 parameters or events you would want highlighted first? Would you trust a learned baseline for that specific vehicle, or would you prefer fixed thresholds? How much false-positive flagging would be acceptable before you stopped looking at the reports? What would a one-page report need to show for an independent shop to take it seriously? For misfire, AFM/DFM, oil pressure, or U-code complaints, what would you want the tool to flag automatically?
    • scotthvac.net
      2022-24 halogen - led grille swap

      By scotthvac.net · Posted

      2024 Silverado 2500 HD LTZ grille no camera Parts list   84603331 84913656 84913657 84913654 84913655 84911567 84911568 85646092 85646093 85797921 85797922   11570637  x10-15   grille/bumper bolts 11546500  x10      grille clips 11571006  x10      push/retainer clips 11546454  x6       nut retainers 11611609  x6       M5 bolts 11610700  x6       molding/trim retainers

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...