GM Service Manual Online
For 1990-2009 cars only

DRIVE AXLE NUT SIZE USE OF DEEP WELL SOCKET

VEHICLES AFFECTED: 1984 'A', 'C', 'J', 'E', And 1985 'C' Series Vehicles

When removing the drive axle nut on 1984-85 front-wheel-drive models it is advisable to use a 6-point deep well socket. Refer to the chart for the correct socket size.

MODEL SOCKET SIZE ----- ----------- l984 'A' Series with JA1/JA8 Brakes - 30.0 mm See Service Parts Identification Label

1984 'A' Series with JA2/JA3 Brakes - 36.0 mm See Service Parts Identification Label

1984 'X' Series 30.0 mm

1984 'J' Series 30.0 mm

1984 'E' Series 36.0 mm

1985 'C' Series 36.0 mm

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.