FRAME SPRlNGS BUMPER 1975 VEGA MONZA Follow the three steps below to utilize the 1975 spring charts I Select the model desired with the base spring weight on Chart A 2 Then se ect options accordingly shown on Chart B end add that weight to the heee spring weight 3 When accumulated weight has been determined refer to chart C and select correct spring CHART A BASE SPRUNG WEIGHT F 1HVO5 Vega 2 Dr Panel 572 459 5 1HV11 Vega 2 Dr Notchbeck Cpe 583 455 5 1HV15 Vega 2 Dr Sta Wag 583 513 5 1HV77 Vega 2 Dr Hatchback Cpe 589 5 480 5 IHRD7 Monza 2 Dr exc Towne Cpe 544 5 523 0 IHM27 Monza 2 Dr Towne Cpe 526 5 519 5 CHART B w A57 Auxiliary Seat 5 5 8 0 CSO Air Conditioning 38 5 4 0 F41 Spec Perf Suspension 4 0 2 0 J5O Power Brake 4 0 0 LV1 262 5 2 BC Engine 133 0 7 0 M38 Hydramatic Transmission HV 8 0 3 0 HFI 6 0 2 5 N41 Power Steering 18 0 0 U63 Radio 3 0 1 0 V01 H D Radiator 2 5 0 V31 Frt Bumper Guards 2 5 O I GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 11 REV 4 77 7 111 7 603 7 503