NOTE 1 When using on models prior to 1959 7451040 diff brg must be used on both L H and R H side 55 59 Ser 4 w 2 Spd axle 55 59 Ser 5 6 7 8 w 2 Spd axle exc H D 60 61 Ser 50 60 w 15 000 Ib 2 Spd axle 62 63 Ser 60 w 15 17 000 Ib 2 Spd axle 64 65 Ser 50 60 w 2 Spd axle exc 4 cyc Diesel 65 Ser 50 4 cyc Diesel w 15 000 Ib 2 Spd axle exc Tilt 65 Ser 60 4 cyc Diesel w 15 000 Ib 2 Spd axle 3786659 1 92 85 planet support w cover Note 2 NOTE 2 When using on models prior to 1959 7451040 diff brg is reqd on R H side 56 59 Ser 9 10 w 18 000 Ib 2 Spd axle 60 66 Ser 80 w 18 500 Ib 2 Spd axle 65 Ser 60 TDM Diesel w 18 500 Ib 2 Spd axle 67 70 Ser 60 w 2 Spd 18 500 Ib axle 2264389 1 39 20 planet support w o cover Eaton 27839 57 Ser 5 6 7 8 9 10 16 000 Ib 2 Spd axle w electric shift 58 59 Ser 5 6 7 8 10F 16 000 Ib 2 Spd axle w electric shift 60 61 Ser 60 70 16 000 Ib 2 Spd axle w electric shift 62 65 Ser 60 17 000 lb 2 Spd axle w electric shift 66 Ser 60 4 cyc Diesel w 17 000 lb 2 Spd axle 2221272 1 29 50 planet support w o cover Eaton 27860 58 59 Ser 9 10 w 18 000 lb axle exc 2 Spd 60 66 Ser 80 w L18 O00 Ib i axle 1st design exc 2 Spd 4 cyc Diesel 65 66 Ser 80 4 cyc Diesel w 18 500 Ib axle exc 2 Spd 2394953 1 112 00 w cover Eaton 44698 Note 3 40 42 Utility exc H D 2 Spd 43 53 Utility 54 55 1 Ton 1st Ser exc 2 Spd 55 59 Ser 4 w Sgl Spd axle 60 62 Ser 40 60 62 Ser 50 60 w 13 000 Ib axle 63 66 Ser 50 exc 4 cyc Diesel 65 Ser 50 Tilt 4 cyc Diesel 66 Ser 50 4 cyc Diesel 67 70 Ser 40 exc 13 500 lb axle 605922 1 43 35 w cover Note 4 NOTE 4 Bolts holding case together to be discarded when installing 60 61 Ser 60 70 w 16 000 lb axle exc 2 Spd 62 66 Ser 80 TDM w 30 000 Ib axle 66 Ser 60 4 cyc Diesel w 17 000 lb axle 1st design exc 2 Spd 3772682 1 108 40 Eaton 46771 Note 3 60 66 Ser 80 TDM exc 4 cyc Diesel 65 66 Ser 80 TDM 4 cyc Diesel w 34 000 lb axle frt rear 67 70 Ser 60 TDM 2398224 1 55 80 input drive differential Eaton 45542 1 1971 CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATION P A 31S 5 510 5 51O 5 202 REV 6 71