FRAME SPRINGS BUMPER 7 503 SPRING ASSY Rear Con t 63 66 Ser 50 60 w 16 000 lb axle 67 Ser 40 50 w aux spring exc SBC TDM 7 68 Ser 40 D D s 69 72 T 5 w aux springs exc 17 000 lb rear axle 2453875 2 aux 2 z 3 65 66 Ser 60 80 4 cyc Diesel w 22 V 000 lb rr spring exc TDM 70 72 T 6 23 000 Ib rear spring w 23 000 lb rear axle 2457444 2 1 1 leaves 65 66 Ser 60 80 4 cyc Diesel w 28 000 lb H D rr spring exc TDM 70 72 T 5 6 20 800 lb rear spring w 18 500 lb rear axle 2457443 2 10 leaves 70 Ser 60 Tilt w 18 500 23 000 Ib rear axle 71 72 Ser 60 Tilt aux rr springs w 18 500 23 000 Ib rr axle 72 Ser 50 60 Conv 20 800 23 000 lb rr spring w 17 000 lb 2 Spd axle 660130 1 aux 72 Ser 40 50 Conv exc 20 800 23 000 lb rr spring 17 000 lb 2 Spd axle 683474 2 aux GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 72TM j 7 503 7 503 7 34 REV 5 79