67 Ser 50 TDM w 28 000 lb 2 Spd 67 Ser 50 w 15 x 5 rr brakes 68 70 Ser 50 w 2 Spd 15 000 A Ib rr axle 68 69 Ser 50 w Dual Brake exc TDM 3874365 2 44 15 10 bolt holes 66 Ser 60 exc TDM 4 cyc Diesel 66 Ser 60 w 243 261I z W B 67 68 Ser 60 w 17 000 Ib 2 Spd axle 68 69 Ser 50 4 cyc Diesel w 17 000 Ib 2 Spd axle 69 Ser 50 w 17 000 Ib 2 Spd axle exc 4 cyc Diesel 69 Ser 60 Tilt w 17 000 lb 2 Spd axle 70 Ser 50 60 w 17 000 Ib 2 Spd axle 3874366 2 44 15 10 holes 5 809 DRUM ASSY Wheel Brake NOTE It will be necessary to know Wheel Type Brake Size and number of stud or lug holes in order to determine 1 he proper drum required FRONT Model Usage Wheel Lug Brake Part Type Holes Size No 40 52 Utility w H D on WB WC exc WA front 604718 IV Ton w 2 Spd Ist Ser 55 Ser 4 5 6 56 59 Ser 4 Disc 6 14 x 2Vz 3754299 56 59 Ser 5 6 63 66 Ser 50 63 66 Ser 60 w 5 000 lb axlle 67 70 Ser 40 67 69 Ser 50 exc Tilt TDM SBC w 25372 W B w 7 000 Ib axle 70 Ser 50 exc TDM Tilt 7 000 17 000 lb axle Disc 6 14 x 2 3754315 56 Ser 7 8 9 10 57 59 Ser 5 6 7 8 9 10 w 7 000 Ib axle exc TDM Disc 6 15 x 2 2354754 58 59 Ser 7 8 9 10 w 7 000 Ib axle exc A B Cast 5 15 x 2 2336413 60 62 Ser 40 Disc 5 11 x 2 3846354 60 62 Ser 50 60 w 5 000 Ib axle Disc 5 14 x 2Vz 3770859 60 70 All w 7 000 Ib axle Disc 5 15 x 3 3773639 60 70 All w 7 000 lb axle Dixc 10 15 x 3 3789918 60 62 All Disc 6 14 x 2V 3784239 62 All w 5 000 Ib axle Cast 5 14 x 2V 2403765 60 62 All w 9 000 lb axle exc I Beam Disc 5 15 x 3 3773638 62 70 All w 9 000 I Beam Disc 5 15 x 3Vz 2400276 62 70 All w 11 000 I Beam mtr whl 85756 B Disc 10 15 x 3Vz 2402542 62 68 All w 11 000 I Beam Cast 5 15 x 3Vz 2402536 63 70 All w 5 000 Ib axle Cast 5 14 x 2Vz 3830913 65 Ser 80 TDM 4 cyc Diesel w 7 000 lb axle Disc 5 15 x 3 2400278 65 66 Ser 60 w 7 000 Ib axle TDM 4 cyc Diesel mtr wheel 86379 A A 70 Ser 50 Tilt Disc 6 15 x 3 2449096 68 70 Ser 60 w 9 1 1 000 12 000 Ib axle 70 Ser 50 Tilt w 1 1 000 Ib axle Cast 5 15 x 3Vz 8878484 NOTE 1 Do not use on State of Pennsylvania vehicles built after March 15 1958 T 1971 CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATION P A 31S REV 6 71 5 aw 5 806 5 809