1 066 GENERAL MOTORS STANDARD METRIC V BELTS NOMINAL BELT PRODUCTION USE BELT IDENT OR SERVICE SERVICE LENGTH CODE NUMBER NUMBER 770 0 mm AAO 11501994 11501994 780 0 mm AAR 11501995 11501995 800 0 mm AAT 11501997 11501997 760 0 mm AAP 11501993 11501194 13 7 mm NOMINAL BELT PRODUCTION USE BELT IDENT OR SERVICE SERVICE LENGTH CODE NUMBER NUMBER 1020 0 mm ARE 11502344 11502344 1160 0 mm ARU 11502358 11502358 1430 0 mm ASX 11502385 9433918 1520 0 mm ATG 11502394 2485091 1530 0 mm ATH 11502395 2485091 1550 0 mm ATK 11502397 9433926 12 7 mm W NOMINAL BELT PRODUCTION USE BELT IDENT OR SERVICE SERVICE LENGTH CODE NUMBER NUMBER 1420 0 mm ASW 11502384 11502384 1988 GENERAL MOTORS SERVICE PARTS OPERATIONS CHEVROLET 17F 1 066 GROUP V BELTS 4 REV 6 88