Hi Al follow the link for some piccies of the trolleys! http://www.andyattwell.members.beeb.net/Driving%20trolley.htm cheers Andy What Ho Andy, No springing on the trolley suspension? Just the rocking arm to apply pressure to the journal boxes? Jesse in Tennessee wher it has stopped snowing. MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.