Hi Kack:
Your system doesn't seem to accept PM, something about being locked out. Anyhow I think you are asking about Spring ride height adjusters, similar to the ones in the attached pic.
They can be purchased from Eurospeed Motorsport, 07 3865 5266 or email
sales@eruospeed.com.au , ask for Geoff. I think they have two different sizes. 51mm ID & 49mm ID
Let me know if this doesn't work and good luck.
Regards....Bob