SECTION 5-B 1955 BUICK DYNAFLOW TROUBLE DIAGNOSIS-ADJUSTMENTS ON CAR 5-9 1955 BUICK DYNAFLOW TEST AND INSPECTION Road Test When improper operation of a 1955 Buick Dynaflow transmission is reported, time and expense will usually be saved by first making a thorough road test to observe operation in all ranges under appropriate driving conditions. The road test [...]