Carrier Bearing Replacement

[yelcab1]

I have a couple of questions for some tranny experts.

1. Would you be comfortable with replacing the differential carrier bearing BUT maintaining the old outer-race?

2. And if the outer race should be replaced, is there any other way to remove the old outer race OTHER than welding a ring on the inside face of the outer race?

I have a welder, and not afraid to use it. I am just looking for alternatives?

[kevingross]

1. No way.
2. What is keeping you from removing the old race? Which year and model 911?

I can't recall ever meeting a DCB outer race that couldn't be tapped out. Heating the case around the race with a MAP gas plumber's torch makes it a lot easier because the bore expands and reduces the interference of the fit.

You can also use an internal puller, such as those made by Kukko.

Now, the inner race on some differentials can be a challenge. I have collet-style pullers especially useful for the ones where the race is flush to the differential housing.

[yelcab1]

Thanks Kevin for reminding me that

1) I have one of those pullers, and
2) as well as a brass punch.

The puller worked on the ring-side outer race, and the punch made easy work of the other side outer race.

[Gonbad]

I had no issues tapping the races out with a punch.

[kevingross]

Originally Posted by yelcab1

Thanks Kevin for reminding me that

1) I have one of those pullers, and
2) as well as a brass punch.

The puller worked on the ring-side outer race, and the punch made easy work of the other side outer race.

Good stuff. Looks like you have a little cleaning to do inside the case!