Originally Posted by Fort Felker

I had my Quaife installation done at Rector. They follow the factory service manual procedure and remove the transmission from the car to do the differential shimming procedure. The resulting cost is about $1500.

DaveN007 has been working with another shop (I don't think it's a Porsche dealer, but I'm not sure) to get his Quaife installation done without removing the transmission from the car. The shimming will be based on careful, accurate measurements of the existing and Quaife differentials. This approach has the potential to save a lot of money on the installation cost (I'd guess an $800 savings could be possible). PM DaveN007 for details.

I attempted to kill 2 birds with one transmission removal by having Rector install a Sharkwerks lightweight flywheel while they were at it. Since the transmission has to come off to get the flywheel in, there was no penalty to doing the Quaife installation and differential shimming at the same time.