GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Power Steering Pump -- CB Series


Object Number: 558329  Size: LF
(1)Hydraulic Pump Reservoir Assembly
(2)Reservoir Capstick Assembly
(3)O-ring Seal
(4)Hydraulic Pump Housing Assembly
(5)Drive Shaft Seal
(6)Flow Control Spring
(7)Control Valve Assembly
(8)O-ring Seal
(9)O-ring Union Fitting
(10)Thrust Plate
(11)Pump Ring
(12)Vane
(13)Pump Rotor
(14)Shaft Retaining Ring
(15)Pressure Plate
(16)O-ring Seal
(17)Pressure Plate Spring
(18)O-ring Seal
(19)End Cover
(20)Retaining Ring
Figure 2:

Power Steering Pump -- P Series


Object Number: 440641  Size: LF
(1)Seal
(2)Control Valve Assembly
(3)O-ring Seal
(5)O-ring Seal
(6)Flow Control Spring
(7)Magnet
(8)Pump Housing Assembly
(10)Housing O-ring Seal
(11)Drive Shaft Seal
(12)Drive Shaft
(13)Dowel Pin
(15)Thrust Plate
(16)Pump Rotor
(17)Shaft Retaining Ring
(18)Pump Vane
(20)Pump Ring
(21)Pressure Plate
(22)Pressure Plate Spring
(23)End Plate
(25)End Plate Retaining Ring
(33)Connector and Fitting Assembly
(35)O-ring Seal
(36)Pump Mounting Stud
(38)Reservoir Assembly
(40)Housing to Stud O-ring Seal
(47)Fill Tube
(48)Blade and Cap Assembly