I BM4 1 I 6 RPO DEFINITIONS I I f V4U EQUIPMENT COACHBU LDER NOT TO EXCEED 7200 LBS Y04 8 50 DIAMETER RING GEAR SAGINAW REAR AXLE I 1992 GENERAL MOTORS SERVICE PARTS 0r snA1 Ns cAp LLAg 62p I1 I 92I I I ww 4 000 Gnouv