FRAME SPRINGS SHOCKS BUMIPERS 1975 PASSENGER Follow the three steps below to utilize the 7975 spring charts 7 Select the model desired with the base spring weight on Chart A I 2 Then select options accordingly shown on Chart B and add that weight to the base spring weight 3 When accumulated weight has been determined refer to Chart C and select correct spring GHART A BASE SPRUNG WEIGHT REAR IBK35 Bel Air 4 Dr Sta Wag 2 Seat 10127 1066 IBK45 Bel Air 4 Dr Sta Wag 3 Seat 1026 5 1095 IBK69 Bel Air 4 Dr Sed 1010 813 IBL35 Impala 4 Dr Sta Wag 2 Seat 1040 5 1079 5 IBL39 Impala 4 Dr Sport Sed 1032 834 IBL45 Impala 4 Dr Sta Wag 3 Seat 1037 5 1107 IBL47 Impala 2 Dr Custom Cpe 1026 802 5 IBL57 Impala 2 Dr Sport Cpe 1022 815 lBL69 Impala 4 Dr Sed 1021 821 5 IBN35 Caprice 4 Dr Sta Wag 2 Seat 1056 1096 IBN39 Caprice 4 Dr Sport Sed 1057 5 854 IBN45 Caprice 4 Dr Sta Wag 3 Seat 1055 1121 IBN47 Caprice 2 Dr Sport Cpe 1049 820 IBN67 Caprice Convertible 1065 5 837 IBN69 Caprice 4 Dr Sed 1046 841 CHART B RPO OPTION WEIGHTS FRONT REAR AG7 Power Driver Seat 5 0 4 5 AT8 Frt Seat 50 50 Bench 8 5 7 5 AU3 Electric Door Lock 2 Dr 2 0 1 5 Electric Door Lock 4 Dr 4 0 2 0 A31 Power Window 2 Dr 6 0 5 0 Power Window 4 Dr 5 0 4 5 A42 Power Seats exc Bk 5 5 4 5 C60 Air Conditioning 454 46 0 3 0 Air Conditioning 350 400 42 5 3 0 C61 Auto Temp Air Conditioning 2 5 0 K30 Cruise Control 3 0 0 LM1 350 4 BC Engine 2 0 1 0 LS4 454 4 BC Engine 93 5 28 5 LT4 400 4 BC Engine 8 0 1 0 M40 Hydramatic Transmission 8 5 4 0 UM1 Radio Tape Player 7 5 2 5 U58 AM FM Radio 5 0 1 5 VE5 Bumper Bar Pad 4 0 2 0 V01 H D Radiator 4 5 0 V30 Bumper Guard 4 0 2 0 1 GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 11 REV 4 81 7 75 c 7 000 GROUP