WARNING: This page is about a different car, the 2003 GMC Yukon XL, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Locating Bushing And Bearing
Courtesy of GENERAL MOTORS CORP.
Fig 2: Locating Seals
Courtesy of GENERAL MOTORS CORP.
Fig 3: Locating Ball Check Valve Locations (Case, Control Valve Body Side)