4 FRAMES SPRlNGS eumnen B l I I I e BAR FrontSuspension Torsion A I B PART NUMBER OR A LAST THREE DIGITS LAST THREE DIGITS B 4 OF PART NUMBER L OF PARTS NUMBER 1 SHOWN ON END SHOWN ON END I J I I I at I VO a l Y I I SJ B COLOR BANDS PER COLUMN a 6 ARE z WIDE A I I 1 BAND R H I HEX TYPE SPLINE TYPE 2 BANDS L H I P CA UTlON Due to numerous production changes extreme care should be exercised when ordering I n replacement Torsion Bars to insure installation of Bars of comparable capacity on both the right and left sides The following chart has been made to aid in the identihcation of Bars for replacement and conversion purposes B V YEAR MODEL Capacity A B Paint Shape Position Part No 60 62 Ser 30 H D 1 750 F 45 f 1 T Yellow I F Hex L H F 3766853 60 62 Ser 30 H D B 1 750 lb 45 1 Yellow Hex R H 3766854 60 62 Ser 10 8 60 62 Ser 20 exc H D 3766851 L H 2 red bands 1250 lbs 60 62 Ser 10 l 60 62 Ser 20 exc H D 3766852 R H 1 red band 1250 lbs 7 413 BUSHING Front Spring Eye F 38 40 Comm I 41 55 4 Ton 1st Ser exo D D 600163 2 l 7 504 l I I 41 55 D D 1 Ton Ist Ser r 55 59 Ser 3 2nd Ser I y 60 65 D D exc 102 W B 63 66 Ser 30 D D w H D Springj 67 Ser 20 30 D D 3717034 2 front eye V I 60 66 4 WD 2385993 4 2 0 L Q 64 66 G 10 3834082 2 front eye 1 0 0 67 69 Ser 10 20 4 WD front 67 Ser 10 20 4 WD w H D rear spring I 68 Ser 20 4 WD w H D rr Spying V I 70 72 Ser 10 20 Blazer 4 WD 3887751 A R I front spring front eye 67 68 Ser 10 20 4 WD a 69 70 Ser 20 w 133 W B exc D D I B I I aux spring 69 70 Ser 30 exc aux spring 11 I N 000 lb axle 69 72 Ser 20 D D 69 70 Ser 10 20 4 WD exc H D 71 72 Ser 20 Conv w 133 W B I I 71 72 Ser 30 D D exc 1 1 000 Ib Sgl Spd axle a 71 72 Ser 30 Conv e E 71 72 Ser 10 20 4 WD 3888968 1 rear eye 67 70 G 10 20 3890384 2 rear B 67 70 G 10 20 3890388 1 front F V 67 69 4 WD Blazer 3890386 A R spring shackle 7 524 70 72 Ser 10 20 Blazer 4 WD 3975203 8 frt spring shackle 7 524 7 415 LEAF Front Spring e F NOTE For front leaf spring chart see group 7 4 12 See price schedule P A 26 for applicable prices 7 417 U BOLT NUT WASHER Front Spring 6 4 GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 72TL i 7 412 7 41 7 7 16 REV 5 19