Porsche Carrera 964: 1989-1994 Technical Data - Without Guesswork: Carrera 2, Carrera 4, RS America, Turbo 3.3, Turbo 3.6

Where appropriate, the handbook delivers very helpful 911 - specific repair instructions and notes. Even if you're an old hand at replacing drive belts on other cars, when replacing the alternator and cooling fan belts on a 911 you have to adjust V-belt tension by moving adjustment shims to inside or outside of pulley halves. When replacing the clutch, you'll need to know that the cross-shaft needle bearings are not identical [so check] proper location before installing. Not sure where the antenna amplifier is mounted? According to a chart in the Electrical section, it's in the luggage compartment near the right hood hinge.