Umm, I had a Mazda 323 engine in the trunk of my Jetta for about 3 days. I probably have about 100lbs in spare parts and fluids right now. :twisted:It is possible that Passat springs may work... unless someone can say otherwise.
The Parts Place in MI sells HD springs for the MkII chassis, and they work excellent. ~$100/pr front or rear.Edit:Link to previous discussion:http://vwdiesel.net/phpBB/viewtopic.php?p=60011&highlight=#60011
A hockey puck is a super easy way to effectively increase spring rate.