The 1980 Vespa P200E Pages
My Coilover shocks came from
Lindbald Chassis 508-234-8283
He runs a smll black and white add in the back of Street Rodder Magizine. Says they are for T Buckets and other light weight cars.
He dosn't have a web site.
They have height adjustment but are only 50/50 damp. You can get any spring rate.