Gear Box: Disassembly

WARNING: This page does not describe the selected car, but rather 21 other vehicles, including the 1992 Pontiac Grand Prix, 1992 Pontiac Firebird, 1992 Pontiac Bonneville, 1992 Oldsmobile Toronado, and 1992 Oldsmobile Ninety-Eight. However, it is still accessible from the selected car via links, so may be relevant.

With wiper motor removed from vehicle, remove crank arm retaining nut. Disconnect crank arm. Remove rubber seal cap and thrust collar or retaining ring. See Fig 1 and Fig 2 .

Fig 1: Exploded View of Wiper Motor Module Assembly
Courtesy of GENERAL MOTORS CORP.

Fig 2: Removing Thrust Collar/Ring
Courtesy of GENERAL MOTORS CORP.
Remove shim washers, shield and spacer washer. Remove park switch assembly. Remove large gear, inner spacer washer, intermediate gear retainer and intermediate gear. When removing large gear, latch arm must be out of way. See Figure . Disassemble drive plate and shaft assembly.