Hello Would anyone know what would cause excessive vibration on a 300F.It first started when the car reached 55 miles per hour then would go away when the car would reach 60 to 65 miles per hour.Then today i was headed to a car show and was only going 20 miles per hour and the car started to vibrate so excessivly and violently and then i started to hear a winding sound underneath the car that i was forced to turn around and bring the car back home.Deos the driveshaft have counter weights on it or could it be a universal i checked the rear universal and it is fine but the front one with the rubber boot around it seems a little stiff but is still nice and tight so i am confused.God everything is wrong with this car all i can say is whoever restored this car does not have much knowledge on 300 letter cars! i mean for $62,500.00 the car should have been done right the first time and should have been correct.I thank any and everyone for any help tom. [Non-text portions of this message have been removed] ------------------------ Yahoo! Groups Sponsor --------------------~--> Protect your PC from spy ware with award winning anti spy technology. It's free. http://us.click.yahoo.com/97bhrC/LGxNAA/yQLSAA/8LmulB/TM --------------------------------------------------------------------~-> To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/