Use only lukewarm or cold water, a soft cloth and a car washing soap to clean exterior lamps and lenses.
Follow instructions under Washing Your Vehicle.
Chevrolet Cobalt Service & Repair Manual. Axle Shaft Oil Seal R&R
1.
Raise and suitably support the vehicle.
2.
Remove the front wheel and tire assemblies.
3.
Insert a punch or drift in the cooling
fins of the brake rotor.
4.
Using a breaker bar ...