Diagram reference number 9 in the image below:
"" Fitment: 2006 SUBARU LEGACY GT - 4 door

Application Notes:

Category: Driveline and Axles

SubCategory: C/V Boots and Related Components

Position: Rear Left Outer

Part Number: 28491AG00A


This is a CV Joint Kit that fits the 2006 SUBARU LEGACY GT - 4 door with the EJ255 engine. The CV Joint Kit is designed by SUBARU to be part of the Driveline and Axles-C/V Boots and Related Components. The CV Joint Kit has a position on the vehicle of Rear Left Outer. The 2006 SUBARU LEGACY CV Joint Kit is a factory made SUBARU OEM part and it comes with a 12 month 12.000 mile warranty (parts only). Do not be fooled by an aftermarket SUBARU LEGACY CV Joint Kit! Buy a factory SUBARU part and receive peace of mind!
This factory part has a part number of 28491AG00A. "