BIG Transmission fluid leak

[someotherguy]

How is that you people think a hole MADE at the time of manufacturer is a "leak"? There is SOMETHING ELSE THAT HAS LET GO, maybe a a seal, or the bushing??? The hole is a VENT! This isn't something I'm guessing at...

I don't disagree, but every design is subject to field revision. That's why I was thinking the TSB would clear things up.

It was my initial thought that the tailshaft bushing has failed, but again it's been forever since I dealt with this particular issue.

Richard

 

[Supercharged111]

How is that you people think a hole MADE at the time of manufacturer is a "leak"? There is SOMETHING ELSE THAT HAS LET GO, maybe a a seal, or the bushing??? The hole is a VENT! This isn't something I'm guessing at...

I don't get this, a vent for what? The yoke doesn't have an airtight seal with the output shaft in the first place which IMO negates the need for a vent and also explains why it's leaking from where it is in the first place.

 

[someotherguy]

Not the TSB being discussed, but may be related to OP's issue:

http://www.73-87.com/7387garage/drivetrain/yokeleak.htm

Before any other cabin fever tempers are triggered, anybody interested, please read the above linked article. It's short and sweet.

Richard

 

[someotherguy]

I don't get this, a vent for what? The yoke doesn't have an airtight seal with the output shaft in the first place which IMO negates the need for a vent and also explains why it's leaking from where it is in the first place.

It's not airtight but if you've spent much time installing driveshafts you will notice there's some slight pressure buildup even just with the slight, slow motion (wow that sounds dirty) from sliding the yoke onto the shaft.

Richard

 

[Supercharged111]

It's not airtight but if you've spent much time installing driveshafts you will notice there's some slight pressure buildup even just with the slight, slow motion (wow that sounds dirty) from sliding the yoke onto the shaft.

Richard

There is, but it bleeds off. Typical suspension travel doesn't stroke the yoke near as much as installing the thing on the vehicle.

 

[someotherguy]

There is, but it bleeds off. Typical suspension travel doesn't stroke the yoke near as much as installing the thing on the vehicle.

Nope, but he's bagged. That's a lot more travel than a stock vehicle, significantly.

Regardless, looks like the issue may simply be the failure of that o-ring as depicted in the Car Craft article.

Richard

 

[454cid]

There is, but it bleeds off. Typical suspension travel doesn't stroke the yoke near as much as installing the thing on the vehicle.

Those vented slip yokes were greased which lubricates the splines, but also creates more of an air seal. I would think that continual working of the suspension would blow out seals if not vented, and also possibly add stress to the u-joints in a direction that they're not really meant to handle.

 

[Channeled 91]

How is that you people think a hole MADE at the time of manufacturer is a "leak"? There is SOMETHING ELSE THAT HAS LET GO, maybe a seal, or the bushing??? The hole is a VENT! This isn't something I'm guessing at...

this is too small to be a factory hole. It is in the middle of the hump in the cap.

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[someotherguy]

But did you go look at the link I posted..

 

[Outlaw910]

is the he hole is in the end of the yoke where the u-joint?

Here is a photo of the leak. It took about a day to form this puddle.

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Oh. No...mine didn't leak in the rear