HEAVY DUTY TRUCK REAR AXLE IDENTIFICATION 1966 CAPACITY MODEL APPLICATION IDENTIFICATION AXLE lbs STANDARD OPTIONAL RATIO TYPE PLATE CODE CODE 11 000 CLPST50 6 17 to 1 Chevrolet IJ 13 500 CLPST50 6 40 to 1 Chevrolet C 135 IK 15 000 CLST60 CLPST50 7 20 to 1 Chevrolet C 15 IL 15 000 CLPST50 60 6 50 8 85 to 1 Chevrolet C 15 IM 11 000 DN50 5 43 to 1 Chevrolet IN 15 000 D50 5 83 to 1 Chevrolet C 15 IO 13 500 DN50 5 29 to 1 Chevrolet IP 15 000 D50 5 29 7 20 to 1 Chevrolet 9 C 15 IO 15 000 CLST60 I 7 20 to 1 Chevrolet C 15 IR Cast Wheels 15 000 CLST60 6 50 8 85 to 1 Chevrolet C 15 IS Cast Wheels 17 000 CLST60 7 20 to 1 Chevrolet C 17 IT 17 000 CLST60 7 20 to 1 Chevrolet C 17 IU Disc Wheels 17 000 CLST60 7 20 to 1 Chevrolet C 17 IV Full Air Brakes 17 000 CLST60 7 20 to 1 Chevrolet C 17 IW Full Air Brakes with Disc Wheels 17 000 CLST60 6 50 8 85 to 1 Chevrolet C 17 IX 17 000 CLST60 7 17 9 76 to 1 Chevrolet C 17 IY Disc Wheels 17 000 CLST60 6 50 8 85 to 1 Chevrolet C 17 IZ Full Air Brakes 17 000 CLT60 7 17 9 76 to 1 Chevrolet C 17 JA Full Air Brakes with Disc Wheels 17 000 CL60 7 20 to 1 Chevrolet C 17 JB Disc Wheels 15 000 CL60 6 50 8 85 to 1 Chevrolet C 15 JC Disc Wheels 15 000 DY60 N50 6 17 to 1 Chevrolet C 15 JD 15 000 DY60 4 86 6 61 to 1 Chevrolet 9 C 15 JG Cast Wheels 15 000 DY60 6 17 to 1 Chevrolet C 15 JG Cast Wheels 28 000 M60 7 20 to 1 Chevrolet C 15 JH 28 000 M60 6 50 8 85 to 1 ChevroIet C 15 Jl 28 000 M60 7 20 to 1 Chevrolet C 15 JJ Cast Wheels 28 000 M60 6 50 8 85 to 1 Chevrolet C 15 JK Cast Wheels 28 000 M60 Trailing 7 20 to 1 Chevrolet C 15 JL 28 000 M60 Trailing 7 20 to 1 Chevrolet C 15 JM Cast Wheels 15 000 N50 6 50 8 85 to 1 ChevroIet C 15 JO 15 000 CLST60 7 20 to 1 Chevrolet C 15 LA Cast Wheels with 15 x 5 Brakes 11 000 D50 5 43 to 1 Chevrolet LB 15 x 5 Brakes 15 000 N50 DY60 6 17 to 1 Chevrolet C 15 LC 15 x 5 Brakes 15 000 DY60 6 17 to 1 Chevrolet C 1 5 LD Cast Wheels with 15 x 5 Brakes 15 000 CL60 7 20 to 1 Chevrolet C 15 LE Disc Wheels with 15 x 5 Brakes 15 000 N50 5 83 7 94 to 1 Chevrolet 69 C 15 LF 15 000 CLPST50 60 7 20 to 1 Chevrolet C 15 LG 15 x 5 Brakes 28 000 MVX6O Trailing 5 57 7 59 to 1 ChevroIet C 15 LH Disc Wheels 197O CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATION P A 31S t 89