3L Belts Max Pitch: 3.1. 3L Belts Max. Turns Open: 0. 3L Belts Min. Pitch: 2.3. 3L Belts Min. Turns Open: 4. 4L or A Belts Min. Datum: 2.4, 4L or A Belts Max Datum: 3.4, 4L or A Belts Min. Turns Open: 5, 5L or B Belts Max. Turns Open: 1, 5L or B Belts Min. Turns Open: 2.7, 5L or B Belts Max Datum: 4.1, 5L or B Belts Min. Datum: 6, Bore (In.): 7/8, Brand: Packard, Country of Origin: CHINA, Diameter (In.) Datum A: 2.4-3.4, Diameter (In.) Datum B: 2.7-3.7, Diameter (In.) Pitch 4L: 2.4-3.4, Outside Diameter (In.): 3.75, Pulley Type: Variable Pitch Pulley, Stock Bore (In.): 7/8, UPC: 840899123448