993c2cab

Anyone have one lying around?? Ya I did it, drained the front diff during an oil change and toasted a bearing most likely. Having trouble sourcing a used unit so if anyone knows of a cayenne turbo 04 that's being parted let me know. Thanks

C4SJOHN

This seller on E bay may have what you are looking for. I don't know him or have anything to do with his business. http://www.ebay.com/itm/03-04-05-06-...5e16f9&vxp=mtr

993c2cab

That's an s not a turbo. Do they use the same diff??

C4SJOHN

I think they do. Check with Sunset Porsche they are only a phone call away....

C4SJOHN

I found this on rennlist... Front Diff R&R can be a pain in the ***. First thing is make damn sure you get the correct diff from your parts source. There is 3 different final drive ratios, (v-6, S, and Turbo). V48/00 is the "S" 4.1 ratio, V48/50 is the Turbo, 3.7 ratio. I don't have the v-6 numbers in front of me, but I think it is a ratio of 4.5. You know how "Parts personnel" are!! There ego is far superior to there parts knowledge in most cases.

If you can get the WM instructions that would be a big help. Be carefull with the inner C.V. joints. If you over extend them, they will come apart!! NOT a good day!!! I have never seen a front diff cause a "crunching noise" per se, I have only done a few for moaning type noises, probably a pinon bearing. But we do not tear them down, out with old, in with the new. Under what conditions does the car make the crunching noise? I have seen 16mm sockets that techs have dropped when doing coils/plugs on bank 1 passenger side. The socket gets wedged between the engine cradle and engine (or front diff housing). It makes all sorts of racket, grinding, crunching etc. Lower control arm bushings fail too. At low speeds, less than 10mph, apply fast, quick stabs to the brake pedal, if you get a big clunk, then your lower control arm bushings are junk. If your are convinced that it is the front diff, then I will post some of the key points from the WM on the R&R procedure. OR someone else with that capablity can do the same.

993c2cab

Thanks John, ended up finding a used one from an 06 turbo. Hopefully no problems with the swap. Most expensive oil change to date

C4SJOHN

993c2cab, good luck with your swap project....

kalyan

wow! sorry to hear your story on oil change adventure... good luck with the swap.

floflo82

I have swapped the front diff on my Cayenne S about a year or so ago.
It's quite a doable job, not too bad. You'll definitely want a lift though, as you have to lower the front axle to get the diff out.

I did this job on my own with no help. Worked slowly with a few breaks, took me 6 hours or so.

This video helped a lot for me (even though it says Touareg, was identical on the Cayenne S)
:

Good luck

floflo82

As previously mentioned, there are at least 3 different ratios (V6/S/TT) for the differentials on the 955.

Now, I've had a look here:

Porsche Cayenne (2007 - 2010) - Front-axle final drive. Ready for installation. > Porsche PET Online > Nemiga.com (nemigaparts.com)

Porsche Cayenne (2003 - 2006) - Front-axle final drive. Ready for installation. > Porsche PET Online > Nemiga.com (nemigaparts.com)

According to this, the 955 and 957 differential with the 3.7 ratio (the one the turbo uses) is the exact same part.

Crozzer

I suggest you reach out to Ian at DirtPig. You can buy salvage for 4-800 and get what you get, new for 3-5K, or he’ll get you a rebuild for about $2K I think.

given the labor in swapping them, I’m going with a rebuilt. I don’t want to do it again next month.