hi,
i have a problem with my cv joint..at least that i thought so ...after accelerating hard and take off the foot from the peddle i started to hear/feel some bad knocks on my rear side. i thought that one of my cv joint gone bad ...after deeper investigation cv joint is good but on the inner side of the cv joint the side where the cv joint meet with gearbox (i do not know the name of that part) it is a pretty big play..i took it appart but that part it is tighten with one bolt in the meddle and isn't loosened...the play is from inside the gearbox...any solution to this problem???please help

p.s: hope you understand my ''English'' !

 

From your limited description, it sounds like it could be an issue with the differential, perhaps something the ring, pinion, or spider gears?

 

I think you did a great job posting your concern...

 

Your differential bearings are on their way out, stop driving it before it gets worse. I just replaced mine that had a similar issue. I started the process on my blog, but I haven't finished uploaded the completed pictures yet.

 

in the photo is the problem ...the play is about 1cm in-out and also the bearing it's leaking .

 

That part is usually referred to as the inner "stub axle" (there's an outer stub axle that attaches to the hub at the wheel). If you replace the bearing, make sure you also get new radial seals for the stub axle. They're not expensive.

 

Correct, when the output shafts/stub axles are able to wobble due to a worn differential bearing, the seal will definitely leak.

If you are doing the job you will need:
Left and Right differential bearings
Input shaft seal x 1
Output shaft seals x 2
Selector shaft gasket x 1
Loctite 574 to reseal the case. (i used VW's case sealant instead)
Approx. 2 liters of gear lube.

Less than 100 bucks in parts and some of your time and you can have it repaired in no time. Obviously you will need to drop the transaxle to do the job.

 

ok thank you ....i will do the job ...as usually ..

 

If you need help sourcing the parts, send me a PM. I don't have the Audi gearbox stuff listed with my transaxle rebuild kits, but I can get all of those parts too.

 

will i need to take the entire transmission apart???

 

any advice with changing that bearings??steps anything would be helpful... anyone done this??

 

Like I said, check the link in my sig and you can see the process. I didn't break it down to baby steps, but it isn't hard.

 

thank you allot