56 59 Ser 7 8 9 10 60 All exc 15 000 lb axle 3733237 1 10 30 Bendix 227571 Note 1 NOTE 1 Consists of 2 each of the following Inlet valve seat unloading piston unloading plunger unloading piston grommet inlet valve guide inlet valve inlet valve spring discharge valve stop discharge valve discharge valve spring unloading plunger guide and 1 each of unloading spring retainer assy unloading spring seat and unloading spring 57 59 Ser 7 8 9 10 60 All exc 15 000 lb axle 9025431 1 4 35 unloading piston Bendix 265014 58 59 Ser 5 6 w A O H B l 60 62 Ser 60 15 000 Ib axle w A O H B 3758897 1 10 35 Bendix 228951 Note 2 NOTE 2 Used on early 1962 models y 56 66 All w Air Equip 67 Ser 50 60 Conv TDM w A O H B 67 70 Ser 50 60 w Air Brake 278383 1 5 40 VALVE reservoir safety Bendix 205105 56 70 All w Air Equip exc H D comp 680966 2 98 VALVE discharge Bendix 203102 56 70 All w Air Equip 2338178 1 79 VALVE inlet Bendix 236125 63 66 Ser 60 80 w H D comp 67 70 Ser 50 60 w H D comp 2227143 2 1 49 VALVE discharge Bendix 230935 65 Ser 60 80 4 cyc Diesel w Air Brake 1st design 648846 2 1 28 VALVE discharge sq 65 Ser 60 80 4 cyc Diesel w Air Brake 2nd design 67 Ser 60 Tilt 4 cyc Diesel w Air Brake 2479023 2 78 VALVE discharge V sq Midland N 1417 A 66 All w Air Brake 66 Ser 80 w 8 Spd 67 69 Ser 60 w Air Equip 70 Ser 50 60 w Air Brakes 3876271 1 7 10 VALVE air pressure protection Midland N 15759 65 Ser 60 80 4 cyc Diesel w Air Brake 1st design 2336781 1 7 05 BODY unloader Midland N 13968 B 65 Ser 60 80 w Air Brake 4 cyc Diesel 2nd design 66 Ser 60 w Air Brake 4 cyc Diesel 2nd design 67 Ser 60 Tilt w Air Brake 4 cyc Diesel exc H D comp 2479033 1 5 50 BODY unloader Midland N 13968 C 66 All w Air Brake 66 Ser 80 w 8 Spd 67 69 Ser 60 w Air Equip 70 Ser 50 60 w Air Equip 3887872 1 2 20 BODY air pressure protection valve Midland 101735 65 Ser 60 80 4 cyc Diesel V w Air Brake 1st design 2336782 2 70 BUSHING unloading valve 66 All w Air Brake 66 Ser 80 w 8 Spd 67 69 Ser 60 w Air Equip I V 70 Ser 50 60 w Air Equip 3887874 1 25 CAP air pressure protection valve spring Midland 601053 65 66 Ser 60 80 4 cyc Diesel w Air Brake 67 Ser 60 Tilt w Air Equip 4 cyc Diesel exc H D comp 2355045 2 70 DIAPHRAGM unloader valve Midland N 13819 A 66 All w Air Brake 66 Ser 80 w 8 Spd 67 69 Ser 60 w Air Equip 70 Ser 50 60 w Air Equip 3887875 1 52 DIAPHRAGM air pressure protection valve Midland 601055 65 66 Ser 60 80 4 cyc Diesel w Air Brake 67 Ser 60 Tilt w Air Equip 4 cyc Diesel exc H D comp 2336785 2 33 DISC unloader valve Midland N 13818 65 66 Ser 60 80 4 cyc Diesel w Air Brake 67 Ser 60 Tilt w Equip 4 cyc Diesel exc H D comp 679987 2 GAUGE discharge valve I tY 1971 CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATION P A 318 7 4 864 4 864 4 246 REV 6 71