1978 CHEVROLET AXLE IDENTIFICATION CODES N I Indic nes Li y Ited Slip A SERIES ASSEMBLY CODES 2 29 RATIO 2 41 RATIO 2 56 RATIO 2 73 RATIO 2 93 RATIO RING I RING RING RING RING GEAR GEAR GEAR GEAR GEAR RA 7 Iz AZ 7 Iz RC 7 Iz AX 7 Iz AG 7 BH 7 Iz BZ 7 z AA 7 Iz BX 7 Iz BG 7 Iz BA 7 Iz RD 7 RX 7 Iz AB 7 BB 7 B SERIES ASSEMBLY CODES 2 41 RATIO 2 56 RATIO I 2 73 RATIO 3 08 RATIO RING RING RING RING GEAR GEAR GEAR GEAR GF 7 YD 8 NC 8 NF E NR 8 YU 8 LC 8 LF B LA 8 YJ 8 r VV 8 F SERIES ASSEMBLY CODES 2 4 I RATIO 2 7 BATIQ 3 08 RATIO 3 42 RATIQ RING RING RING RING GEAR GEAR GEAR QEAB PS 8 PU 8 II W 8 PV 8 PJ 8 PA 8 PC 8 PE 8 3 73 RATIO RING GEAR PZ 8 PF 8 I u szmss ASSEMBLY cones 2 29 RATIO 2 56 RA O 2 73 RATIO 2 93 RATIQ RING I RING RING RING GEAR GEAR GEAR GEAR EA 7 E8 7 EC 7 ED 7 EZ 7 EY 7 EX 7 EW 7 3 08 RATIO 3 23 RATIO I RING RING GEAR GEAR EJ 7 EE 7 ER 7 EV 7 GM PARTS DIVISION GENERALMOTORS CORPORATl0N CI IEVROLET 1 0 30