Kurt,
I had the shop remove the bearing fro the trailing arm and the race from the spindle. I havent done the install portion yet, but wil be very, very shortly. I'd be willing to help, but will be like the blind leading the blind for the removal portion.
I'm currently sourcing the parts to make the installation tool. Feel free to borrow.
See post:
http://www.dorkiphus.com/porsche/viewtopic.php?t=255
The bearing should slip right in if the bearing is placed in the freezer before hand and the trailing arm heated with a propane torch. The tool is needed to then press the spindle into the bearing while supporting the inner race at the same time.
The spindle will come out by using a deep well socket as a drift and a 3-lb hammer. Removing the spindle from the old bearing will leave 1/2 the inner race deep on the spindle and will need to be puled off. The bearing itself should come by heating the trailing arm then coaxing it out w/ some type of drift and and a 3-lb hammer. Since the trailing arms were out of the car, I took them and the spindles to the shop and hed them remove the bearing and the race.