REAR AXLE AVAILABILITY CHART 1955 CAPACITY MODEL APPLICATION AXLE lbs STANDARD OPTIONAL RATIO TYPE CODE 11 000 Ser 4 6 17 to 1 Chevrolet CG 13 000 Ser 6 6 17 to 1 Chevrolet Cj 15 000 Ser 5 Ser 6 6 17 to 1 Chevrolet CH 15 000 Ser 5 6 7 20 tc 1 Chevrolet CM 15 000 I Ser 4 5 6 5 83 7 95 to 1 Chevrolet CK 15 000 Ser 5 6 6 40 8 72 to 1 Chevrolet CL Vacuum Shift Chevrolet code is stamped on carrier along with date of manufacture 1956 CAPACITY MODEL APPLICATION AXLE lbs STANDARD OPTIONAL RATIO TYPE CODE 11 000 Ser 4 6 17 to 1 Chevrolet CG 13 000 Ser 6 6 17 to 1 Chevrolet Cj 15 000 Ser 5 7 8 exc 8F Ser 6 6 17 to 1 Chevrolet CH 15 000 Ser 8F 10F Ser 5 6 7 8 exc 8F 7 20 to 1 Chevrolet CM 15 000 Ser 4 5 6 7 8 6 40 8 72 to 1 Chevrolet CL CW 18 000 Ser 9 10 exc 10F TDM 7 17 to 1 Eaton A 18 000 Ser 9 10 exc 10F TDM 6 50 8 87 to 1 Eatone A 30 000 Ser 10 TDM 7 20 to 1 ChevroletT DA DB Vacuum Shift E1ectric Shift TTwo 15 000 lb axles J Chevrolet code is stamped on carrier along with date of manufacture AEaton Spec No is stamped on housing arm Ratio and Serial No stamped on carrier 1957 CAPACITY MODEL APPLICATION AXLE lbs STANDARD OPTIONAL RATIO TYPE CODE 11 000 Ser 4 6 17 to 1 Chevrolet CG 15 000 Ser 5 6 7 8 10F exc TDM 7 20 to 1 Chevrolet CM 15 000 Ser 5 6 7 8 exc BF TDM 6 17 to 1 Chevrolet CH 15 000 Ser 4 5 6 7 8 exc D D 6 40 8 72 to 1 Chevrolet CL CN CW 16 000 Ser 9 10 exc 10F TDM Ser 5 6 7 8 10F exc D D 6D 6E BF TDM 7 17 to 1 Eaton A 16 000 Ser 5 6 7 8 9 10 exc D D SBC 6 50 9 04 to 1 Eaton A u 18 000 Ser 9 10 exc 10F TDM 7 17 to 1 Eaton A 18 000 Ser 9 10 exc 10F 6 50 8 87 to 1 Eatone A 30 000 Ser 8 10 TDM 7 20 to 1 Chevrolet I DA DB A Vacuum Shift E1ectric Shift 1 Two 15 000 lb axles 4 Chevrolet code is stamped on carrier along with date of manufacture AEaton Spec No is stamped on housing arm Ratio and Serial No stamped on carrier 14 Ch vroI t Motor HDT Gonerul Motors Corporation