JoeMag

is the outer cv vented through the center of the axle or just the inner one?

Robin 993DX

Just happens to be replacing the CV bott on my 996, looks like just inner.

JoeMag

actually now that you've posted that pic, i'd say both. inner had hole that goes all the way through the axle, and stub axle has hole, so outer one is vented too.

Tango635

Not to hi-jack the thread, but what grease are you guys using for the assembly?

Geoffrey

Neo or Krytox.

Robin 993DX

I use the Swepco grease purchased from Pelican parts
http://www.pelicanparts.com/cgi-bin/...&FILTER_PORS=Y

I am not sure what the purpose it would be to vent it through the hub end, as it would vent into the CV boot? The hub end is disconnected at the universal joint.

Mike J

I use nothing but Swepco 101 as well - this stuff is really good!

JoeMag

Robin -- did you catch this post? The venting has to go somewhere external to the axle. if it didn't the boots would just balloon up as used to happen on some track cars before venting.

https://rennlist.com/forums/showthre...ferrerid=30715

Tom W

If you track your car, your axles/CV will last a lot longer if you use Neo or Krytox.

Robin 993DX

Joe,

I just finished replacing the CV boot on my front driveshaft of the my 996 C4. After I removed the CV on the hub side I double checked and there are no hole for venting in the drive shaft, at least not on the hub end.

Another 996 cost saving item?

JoeMag

Interesting.