A 1990 A A I TRUCK SERIES IDENTIFICATION A 2 DOOR 2 DOOR 2 DOOR WHEEL CAB TO l PICKUP PICKUP BLAZER PAVLOAD BASE AXLE I SERIES A FLEETSIDE FLEETSIDE JIMMY LBS MM MM I ST10603 O3 W E6 3 S 2750 983 1856 MM BOX 1000 1500 ST10803 O3 W E63 1625 2995 1228 2261 MM BOX A T ST10653 EXTENDED 1000 983 53 W E63 1500 1856 MM BOX I Sum 1G M55 10603 AND 510803 ONLY A A V I L4 REQUIRED M73 4 NOTE Al1 light duty model numbers are preceded by the letter C for Chevrolet models and by the letter T for GMC Truck and Bus models All GMC Truck and Bus model identifications are obtained through stipulation of RPO Z88 A FMST 003 A 113088 l I 2 DOOR PICKUP 2 DOOR PICKUP 2 DOOR UTILITY FLEETSIDE EXTENDED CAB BLAZER JIMMY FLEETSIDE J A J A i 1990 GENERALMOTORS SERVICE PARTS OPERAT ONS LT TRUCK 52S 12 REV 10 90