VB4 Follow the three steps below to utilize the 1576 spring charts I Select the model desired with the base spring weight on Chart A 2 Then select ootions accordingly shown on Chan 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 CHART A 1976 78 CORVEI IE BASE SPRUNG WEIGHT R M Ls r r H1 1YZ37 Corvette 2 Dr Cpe 728 5 778 0 CHART B 1976 78 CORVEI IE I1 P O OPTION WEIGHT5 FRONT REAR A31 Power Windows 2 0 1 5 C60 Air Conditioning 32 5 8 0 J50 Power Brakes 4 5 0 M38 Hydrarnetic Transmission 10 5 6 5 M40 Hydmmatic Transmission 18 5 8 5 N41 Power Steering I 12 5 0 U58 Stereo Radio 5 5 3 5 U69 AM FM Radio 3 5 3 5 CHART C 1976 78 CORVEI IE FRONT SPRINGS GROUP 7 412 I SPRUNG PART MODELS TIRES WEIGHT N0 All exc H D Suep GFl70 15 0 760 346939 761 BDO 346940 B01 Over 346941 All w I l D Susp GR70 15 0 720 340518 721 780 354131 781 835 362150 836 0ver 362151 I CHART C I 1976 77 CORVETTE REAR SPRINGS GROUP 7 503 SPRUNG PART MODELS TIRES WEIGHT NO All exc H D Susp GFI70 15 r All wlrio susp semis aszsaa WAFIEHOUSING AND DISTRIBUTION DIVISION 0F GENERAL MOTORS COFIPORATION CHEVFIOLET IAA REV 12 83 7 5 c 7 000 GROUP I F I 8