Are you saying that the garage have removed the prop & let you drive it without one? Doesn't sound a good idea to me!
Find yourself a decent independent local garage to do your servicing & repairs - any garage should be able to recommend an engineering firm to recondition your prop if they can't do it themselves.
Try
http://www.reco-prop.com/prop.htm
Find yourself a decent independent local garage to do your servicing & repairs - any garage should be able to recommend an engineering firm to recondition your prop if they can't do it themselves.
Try
http://www.reco-prop.com/prop.htm