LIGHT DUTY TRUCK REAR AXLE IDENTIFICATION Axle Identification is stamped on differential carrier along with date ol manufacture 1955 58 1961 Plant Plant Identification Identification Series Type G A Buffalo Series Type G A Buffalo 31 3200 All 3 90 Ratio AF R10 3 Speed or 4 Speed 3 89 ratio BL 31 3200 Overdrive 4 11 Ratio AG R10 Automatic Transmission 3 89 ratio BY 34 35 3700 3 Speed 5 14 Ratio CA C10 3 90 ratio exc Positraction MA 34 35 37 C10 All 3 38 ratio MB 3800 Dual Wheels 5 14 Ratio CB C10 3 90 ratio Positraction MC 34 35 3700 3 Spd H D 4 Spd H T 5 14 Ratio CE C10 3 90 ratio exc Positraction MD 34 35 37 C10 All 3 38 ratio ME i 3800 14 Brake 5 14 Ratio CF C10 3 90 ratio Positraction MF 3600 All 4 57 Ratio CC K10 4 Wheel Drive 3 90 ratio MG 3600 Dual Wheels 4 57 Ratio CD C20 All 4 57 ratio MH 3103 04 05 C20 3 Speed H D 4 Speed 4 57 ratio MJ 06 16 4 Wheel Drive 3 90 Ratio AR K20 4 Wheel Drive 4 57 ratio MK 3603 04 09 4Wheel Drive 4 57 Ratio CP P20 All 5 14 ratio ML 3803 04 09 4 Wheel Drive 5 14 Ratio CQ P20 5 14 ratio exc 3 Spd MN 31 3200 3 90 Ratio All C30 All 5 14 ratio PA C30 P30 Dual Wheels 5 14 ratio PB NOTE 1957 1958 only P30 All 5 14 ratio PC TNOTE 1958 only 1962 1959 R10 Positraction 3 89 ratio HL 31 3200 All 3 90 ratio AF R10 Positraction w Auto Trans 31 3200 All 3 70 ratio AJ 3 89 ratio l IM p 3103 04 05 R10 3 or 4 Speed 3 89 ratio HE 06 16 4 Wheel Drive 3 90 ratio AR R10 Auto Trans 3 89 ratio HF 31 3200 All 3 38 ratio AY C14 3 90 ratio exc Positraction MA 34 35 3700 3 Spd 5 14 ratio CA C14 All 3 38 Ratio MB 34 35 37 C14 3 90 ratio Positraction MC 3800 Dual Wheels 5 14 ratio CB C14 4 11 ratio MT 34 35 3700 3 Spd H D 4 Spd H T 5 14 ratio CE C15 3 90 ratio exc Positraction MD 34 35 3700 14 Brake 5 14 ratio CF C15 All 3 38 ratio ME 3600 All 4 57 ratio CC C15 3 90 ratio Positraction MF 3600 6 50 16 7 17 6 ply 4 57 ratio CD C15 4 11 ratio MU 3603 04 09 4 Wheel Drive 4 57 ratio CP K10 4 Wheel Drive 3 90 ratio MG 3800 All 5 14 ratio CF P10 All 3 90 ratio exc Positraction MW i 3803 04 05 P10 All 3 90 ratio Positraction MY 09 4 Wheel Drive 5 14 ratio CQ P10 3 38 ratio MZ C20 All 4 57 ratio exc Positraction MH C20 3 Speed H D 4 Speed 4 57 ratio MJ C20 3 Speed H D 4 Speed 4 57 ratio 1 Positraction MP C20 All 4 57 ratio Positraction MO K20 4 Wheel Drive 4 57 ratio MK C10 3 90 ratio exc Positraction MA P20 All 5 14 ratio exc Positraction ML C10 All 3 38 ratio MB P20 3 Speed H D 4 Speed Hydramatic C10 3 90 ratio Positraction MC 5 14 ratio MN C10 3 90 ratio exc Positraction MD P20 3 Speed l l D 4 Speed Automatic C10 All 3 38 ratio ME Transmission 5 14 ratio C10 3 90 ratio Positraction MF Positraction MR I K10 4 Wheel Drive 3 90 ratio MG P20 All 5 14 ratio Positraction MS C20 All 4 57 ratio MH C30 All 5 14 ratio exc Positraction PA C20 3 Speed H D 4 Speed 4 57 ratio Ml C30 Dual Wheels 5 14 ratio K20 4 Wheel Drive 4 57 ratio MK exc Positraction PB P20 All 5 14 ratio MI C30 All 5 14 ratio Positraction PL P20 5 14 ratio exc 3 Spd MN C30 Dual Wheels 5 14 ratio Positraction PN rr C30 All 5 14 ratio PA P30 All 5 14 ratio exc Positraction PC C30 P30 Dual Wheels 5 14 ratio PB P30 Dual Wheels 5 14 ratio PK P30 All 5 14 ratio PC2 P30 All 5 14 ratio Positraction PM 197O CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATlON P A 3l 77