Disassembly Procedure

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Remove the pitman shaft and the side cover. Refer to STEERING GEAR PITMAN SHAFT AND HOUSING COVER REPLACEMENT - OFF VEHICLE (670 GEAR) or STEERING GEAR PITMAN SHAFT AND HOUSING COVER REPLACEMENT - OFF VEHICLE (700 GEAR) .
Remove the pitman arm (3) from the steering gear (1).
Remove the pitman shaft boot (2).

Fig 1: Removing Pitman Shaft Boot
Courtesy of GENERAL MOTORS CORP.
Remove the dust seal (1).
Remove the retaining ring using the J 4245 .

Fig 2: Removing Retaining Ring
Courtesy of GENERAL MOTORS CORP.

Important: Use care not to score the steering gear housing bore when prying out the seals and the washers.
Use a screwdriver to pry the backup washer (3) and the double lip seal (2) from the steering gear housing (1).
Inspect the steering gear housing (1) for burrs.

Fig 3: Removing Backup Washer And Double Lip Seal
Courtesy of GENERAL MOTORS CORP.
Insert J 6278 through the hole in the top of the steering gear housing (1).
Drive out the needle bearing (2).

Fig 4: Removing Needle Bearing
Courtesy of GENERAL MOTORS CORP.