FRAME SPRINGS BUMPER Follow the three steps below to utilize the 1972 spring charts 1 Select the model desired with the have spring weight on Chart A 2 Then select options accordingly shown on Chart B and odd that welght to the base spring weight 3 Once accumulated weight has been determined refer to chart C and select oorrect qzring CHART A 1972 PASSENGER BASE SPRING WEIGHT MODEL FRONT REAR mace eamyne Is cya 912 5 vein 15469 Biscayna 8 Cyl 984 5 784 5 15569 Bel Air 6 Cyl 911 5 762 0 l5669 Bel Alr 8 Cyl 983 5 783 5 16369 IrnP la Sed exc Spt Sed 6 Cyl 922 5 788 5 16469 Impala Sed exc Spt Sed 8 Cyl 995 5 803 5 16439 Impala Spt Sed 999 5 818 5 16639 Caprice Spt Sed 1011 5 823 0 16357 Impala Spt Cpe exc Cumm 6 CVI 914 5 764 5 16457 Impala Spt Cpe exc Custom B Cyl 985 5 782 5 16447 Impala Custom esi ms 5 16647 Caprice Spt Cpe 1000 5 783 0 16467 Impala Conv 1001 5 807 5 15435 Brookwood 952 5 1069 0 15635 Tuwnsman 6 Pass 951 5 1069 0 15645 Tovvnsman 9 Pass 948 5 1116 0 16435 Kinaswood exc Estate 6 Pass 963 5 1082 0 16445 Kmgmooa exc Emo Ie Pass 969 5 11 40 0 16635 lns swood Estate 6 Pass 972 0 1093 5 16645 Kingswood Estate 9 Pas 968 0 1l38 5 CHART B 1972 PASSENGER RPO OPTIONS FRONT REAR A31 Electric Window 6 5 5 5 A42 6 Way Seat 5 5 5 0 B02 Taxi 14 0 13 0 B07 Police 13 5 6 0 C60 Alr Condltlonlng 5l 5 2 5 F40 Heavy Duty Susp 8 5 0 LS3 402 90 6 8 5 LS5 454 92 5 27 5 M40 TH 400 14 5 2 0 N10 Dual Exhaust 0 20 0 V55 Roof Lusglss Carrier 0 12 GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 11 7 503 1 503 rs REV 4 77