Drivetrain - Drive Axle Nut Sizes
Bulletin 85-4-1Date July '84
Ref. No. 84-283-4
SUBJECT: DRIVE AXLE NUT SIZES
MODELS AFFECTED: 1984 CENTURY, SKYLARK, SKYHAWK, RIVIERA 1985 ELECTRA
When removing the drive axle nut on 1984-85 front-wheel-drive models it is advisable to use a 6-point deep well socket as listed below.
MODEL SOCKET SIZE
1984 Century with JA1/JA8 30.0 mm
Brakes - See Service Parts Identification label
1984 Century with JA2/JA3 36.0 mm
Brakes - See Service Parts Identification Label
1984 Skylark 30.0 mm
1984 Skyhawk 30.0 mm
1984 Riviera 36.0 mm
1985 Electra 36.0 mm