Contact [email protected] for suspension parts and some other goodies. They make a front sway bar, adjustable rear sway bar and provide springs to match. Almost all Volvo IT drivers are using their setup. I have never tried to call there so I don't have a phone number. They are located in PA and I'm told that Bob will answer the phone only on Tuesdays and maybe only in the afternoon. He does respond to emails pretty quickly.

Nat Wentworth
Volvo 142