WARNING: This page is about a different car, the 2002 Volvo C70, 2001 Volvo C70, 2000 Volvo C70, 1999 Volvo C70, and 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Gearbox Removed
Courtesy of VOLVO CARS OF NORTH AMERICA.
Remove the oil pipe with the hose from the gearbox.
Flush the pipe and hose using Dexron III ATF oil.
Install the oil pipe on the new gearbox.
Install a new O-ring on the quick-release connector.