Thanx for the details Evan ! . Robert , I am sorry I don't have the harmonic damper you need . FWIW , to - day (1.1.2016) I was Junkyarding and stopped to inspect a Mercedes W124 Convertible (a wretchedly bad car if ever one was made , also super rare) and noticed the rear seat's retractable headrests were hydraulic , having a tiny 12 volt electric pump and hoses , cylinders etc. I have NO IDEA what to use it for but I'm sure someone will think of a clever thing....
