Wet Concrete From Transmission Extension Housing

[YukonCrazy]

As a side note, I do remember having the drive side mount replaced a couple years ago. It was obvious when putting in gear with one foot on brake and the other giving it gas the drive side of motor would go up and down. Really don't think I ever had the passenger side replace.

So I assume it's possible the vibration may be due to a worn passenger side mount? Still need to figure out the leakage though.

 

[YukonCrazy]

Looks like it is a GM extension housing. Hopefully that partial number stamped on there isn't the actual part number as it looks like it ends in 3015.

 

[donjetman]

x2 what Galante/Pete said: balance the drive shaft and install a new seal.

 

[Rocket Man]

x2 what Galante/Pete said: balance the drive shaft and install a new seal.

X3

 

[YukonCrazy]

Forgot to mention, I had the original driveshaft balanced early on while trying to diagnose the vibration. No change. Same vibration. Went so far to order a new driveshaft with yoke and u-joints all put together, which is what is on there now, and again no change. I am pretty sure it is not the driveshaft.

By the way, the small vibration that is there at times, I do not feel in the steering wheel at all. Driving down the road at the speed limit and the vibration comes and goes. It's not consistent. It's subtle, but there at times.

 

[Rocket Man]

Forgot to mention, I had the original driveshaft balanced early on while trying to diagnose the vibration. No change. Same vibration. Went so far to order a new driveshaft with yoke and u-joints all put together, which is what is on there now, and again no change. I am pretty sure it is not the driveshaft.

By the way, the small vibration that is there at times, I do not feel in the steering wheel at all. Driving down the road at the speed limit and the vibration comes and goes. It's not consistent. It's subtle, but there at times.

Now you tell us....not trying to be an ass but when you come on a forum and ask for help you need to be specific and you need to mention everything you’ve done to the vehicle lately even if you don’t think it has anything to do with the problem. For me, this entire discussion has tested my patience from the very beginning with the ambiguous description of the type of fluid causing the concrete to be “wet”. It took forever for you to tell us it was most definitely trans fluid, we were left to assume. Then there’s details like the motor mount and now the driveline that you forgot to mention. I’m wondering if there’s other details you have left out.

 

[YukonCrazy]

Sorry about not including the drive shaft info earlier.

Planning on finding a level surface so I can check the trans fluid level.

 

[swathdiver]

Sorry about not including the drive shaft info earlier.

Planning on finding a level surface so I can check the trans fluid level.

I remember all that stuff you went through a year or so ago. Whoever installed the seal might not have put it in right, with a block of wood instead of a seal driver.

 

[OR VietVet]

Now you tell us....not trying to be an ass but when you come on a forum and ask for help you need to be specific and you need to mention everything you’ve done to the vehicle lately even if you don’t think it has anything to do with the problem. For me, this entire discussion has tested my patience from the very beginning with the ambiguous description of the type of fluid causing the concrete to be “wet”. It took forever for you to tell us it was most definitely trans fluid, we were left to assume. Then there’s details like the motor mount and now the driveline that you forgot to mention. I’m wondering if there’s other details you have left out.

Mark, it seems we think alike about this. That is why when I ran shops I asked at least 20 questions or so because I wanted to know everything to help make a diagnosis of the problem.

My old saying was, "If the problem only happens at midday Sunday in the rain turning left over the railroad tracks while going uphill and feathering the gas, I want to know about it".

Too many times we get 4-5 pages in to a thread and then a key piece of info is spit out. Oh well. Good day.

 

[OR VietVet]

@PNW VietVet

when you want to tag someone put the @ symbol before their name.... just a friendly fyi

btw im going with seal and driveshaft out of balance.... my 01 went through a few seals (output shaft seal on transfer case...pretty much same thing as end of the trans on a 2wd) until i had an aha moment as to why, yanked the shaft sent it out to be balanced and viola...

ps @YukonCrazy .... i knew what you meant by wet cement.... first post you said drip out of trans....

Thank you Pete. @Galante

 

[thompsoj22]

Forgot to mention, I had the original driveshaft balanced early on while trying to diagnose the vibration. No change. Same vibration. Went so far to order a new driveshaft with yoke and u-joints all put together, which is what is on there now, and again no change. I am pretty sure it is not the driveshaft.

By the way, the small vibration that is there at times, I do not feel in the steering wheel at all. Driving down the road at the speed limit and the vibration comes and goes. It's not consistent. It's subtle, but there at times.

Just a guess, carrier bearing.

 

[YukonCrazy]

Now you tell us....not trying to be an ass but when you come on a forum and ask for help you need to be specific and you need to mention everything you’ve done to the vehicle lately even if you don’t think it has anything to do with the problem. For me, this entire discussion has tested my patience from the very beginning with the ambiguous description of the type of fluid causing the concrete to be “wet”. It took forever for you to tell us it was most definitely trans fluid, we were left to assume. Then there’s details like the motor mount and now the driveline that you forgot to mention. I’m wondering if there’s other details you have left out.

Again, I am sorry my presence on this thread has gotten your patience out of whack. Feel free to ignore my future posts on this forum. So people come here when they have questions about problems that others may have already dealt with. Were not perfect and maybe don't anticipate including information that may or may not be relevant, but I assure you it's not on purpose or meant to cause undue psychological harm. We are not solving life or death problems here so maybe a little perspective and a little grace may go a long way.

 

[OR VietVet]

Just a guess, carrier bearing.

There is no carrier bearing on this Yukon.

 

[OR VietVet]

Again, I am sorry my presence on this thread has gotten your patience out of whack. Feel free to ignore my future posts on this forum. So people come here when they have questions about problems that others may have already dealt with. Were not perfect and maybe don't anticipate including information that may or may not be relevant, but I assure you it's not on purpose or meant to cause undue psychological harm. We are not solving life or death problems here so maybe a little perspective and a little grace may go a long way.

The frustration comes after so many responses. If I could tell any member one thing about posting a problem on this forum, it's that you should maybe write everything down before posting so nothing is forgotten. Scott, you have to remember that besides members here that do not or have not worked in shops, there are guys like myself and others that have worked in shops and know that something left unsaid because the OP thought it was irrelevant or forgot can make all the difference when we try to help. Your first response back to Mark about apologizing for forgetting to mention something was spot on but now you want to make a bigger deal of it all. It has nothing to do with your "presence" or "not being perfect" or "not knowing what is relevant" or "whether it was on purpose". When you went to the comparison of "psychological harm" and "life and death" some of that so called perspective was lost.

Mark is one of the guys here that helps A LOT of people but like a computer, "Garbage in and garbage out" will happen if Mark and other helpers here can't PRY the info out of the OP.

No one needs to ignore anyone. C'mon man! Let's consider it water under the bridge and just take a deep breath and let it go. We do want to help you know. We may experience the same thing on our rigs and can look back on previous posts to fix or ask the many many people here for help.

Scott, have a better day.

 

[Rocket Man]

Again, I am sorry my presence on this thread has gotten your patience out of whack. Feel free to ignore my future posts on this forum. So people come here when they have questions about problems that others may have already dealt with. Were not perfect and maybe don't anticipate including information that may or may not be relevant, but I assure you it's not on purpose or meant to cause undue psychological harm. We are not solving life or death problems here so maybe a little perspective and a little grace may go a long way.

Believe me when I say I was trying to help you. Information you provide is directly related to the quality of help you receive in return. I started that off by stating I wasn’t trying to be an ass. But since you got butt hurt and decided to be a smart ass yourself..... oh never mind. Good luck.

 

[George B]

Maybe the leak and vibration are unrelated. I would see if a new seal fixes the leak and keep chasing the vibration separately. Maybe put the joint into the rear yolk 180 from where it is now. Could it be the rear brakes making the vibration? Try swapping the rear rotors from side to side?
I dunno....

 

[thompsoj22]

There is no carrier bearing on this Yukon.

rear diff carrier bearing? Our last tahoe had one going out and it was a "dull rumble/vibration" on deceleration, off throttle. not sure on the particulars of the op but i love guessing without having to bust my own knuckles!

 

[donjetman]

x2 what John/thompsoj22 said. I had a chevy 2500 van that had a noisy rear end . When I finally did something about it, carrier bearing cap bolts were loose etc. Tightened everything and all was well.

 

[oldchev]

Late jumping onto this thread. This is a great forum. Lots of very intelligent, thoughtful, helpful individuals trying to diagnose and fix a problem based on sometimes limited information. Hard to do.
The oil mark seems considerable so more than a light drip, more like a seep and it been going on more than two weeks. Oil spray evident on floor pan so leaks while driving. The exhaust may have burned the oil off but would still leave a deposit or stain.
Is it possible that this trans has been overfilled at some point? The indicated angle of driveway isn't severe enough for this much leak without a mechanical problem or overfill so I would level the vehicle, check trans fluid level, put a piece of cardboard under assumed oil leak area while level and see how much it leaks. If it still leaks (any), and the fluid level is correct, then remove driveshaft and replace the seal and check the yoke for any wear on seal surface.
There is no reason this should be leaking that much oil without seal damage or the wrong seal or a problem with the yoke.

When the correction is made, let us all know what was found. Helps others.

 

[OR VietVet]

rear diff carrier bearing? Our last tahoe had one going out and it was a "dull rumble/vibration" on deceleration, off throttle. not sure on the particulars of the op but i love guessing without having to bust my own knuckles!

In my mind a carrier bearing is an additional support for a two piece driveshaft that is bolted to the frame. If you are talking about differential bearings then there is the side bearings and the pinion bearing and at the end of the tubes, axle bearings. Am I missing something about what you said?