I managed to lose the water pump/alternator belt on my 60 TR3A this morning (installed 5 years ago). When I go down to my friendly neighborhood auto parts store, what size should I purchase?? Thanks John John Wise Ormond Beach, FL 1960 TR3A http://wisegroupllc.org/_/TR3A.html 1977 Porsche 911S ('86 3.2 engine) http://wisegroupllc.org/_/Porsche.html