TM 9-2320-279-10-1 1-28 Change 8 Equipment Differences and Technical Data (Cont) 1-12.  EQUIPMENT DATA (CONT). Table 1-2. Equipment Data (Cont) Model Item TRANSFER CASE ALL Make:  Oshkosh ALL Model: 55000 ALL Type: Air operated front tandem disconnect ALL Ratios: 98:1 and 2.66:1 AXLES Front Tandem ALL Make: Oshkosh/Eaton ALL Differential Carrier Model Nos.: No. 1 axle-RS480 No. 2 axle-DS480-P ALL Maximum Load Capacity: 30,000 lb (13 600 kg) ALL Maximum Steering Angle: 32 degrees Rear Tandem ALL Make: Eaton ALL M977 M978 M983 M984A1 M985 Differential Carrier Model Nos. No. 3 axle No. 4 axle DS480-P RS480 DS480-P RS480 DS480-P RS480 DS650-P RS650 DS480-P RS480 M977 through M983 M984A1 M985 Maximum Load Capacity: 32,000 lb (14 500 kg) 65,000 lb (29 500 kg) 38,000 lb (17 200 kg) BRAKE SYSTEM ALL Actuation: Air ALL Number of Brake Chambers: 8 ALL Pressure Range:  60 - 120 psi (414 - 827 kPa) WHEELS NON-FHTV MODELS Type: Three piece split rim NON-FHTV MODELS Quantity: 8 ALL Type: Two piece bolt together wheel ALL Quantity: 8