1979-80 Firebird / TransAm
Classic Update Series™ Wiring System (Part # 510689)

This is one of the most complete wiring systems in the industry. Take a look at the numerous items and features it contains, including:

• Harness is laid out and formed to allow for nearly all aftermarket accessories such as; gauge packages, wiper systems, heat and air conditioning systems, etc.
• Fuse box designed to fit in original location with no modifications. All required hardware supplied. New ATO fuse panel allows for easy fuse and circuit breaker accessibility.
• Front lighting includes extra-long leads that can be routed for stock or optional appearances. All headlight connectors and terminals, parking and directional light leads and lamp sockets, and side marker leads and lamp sockets are provided along with a switched trigger wire for an electric fan relay (usually recommended with AC).
• Engine wiring includes connectors for original points type as well as H.E.I. distributors. Power and tachometer connectors supplied for GM H.E.I. distributors. Alternator connectors are supplied for GM “SI” series internally regulated alternators. GM “CS” series alternator adapter is available separately.
• GM bulkhead connectors for the engine and front light wiring are included and allow for easy installation with original or custom routing.
• Replacement headlight switch with internal 30-amp circuit breaker, retention collar nut, adjustable length shaft, and custom knob.
• Standard turn signal and hazard flashers are mounted on fuse panel. A new horn relay is mounted on the main dash harness.
• Steering column connectors can plug directly into many aftermarket steering columns or stock 1977-80 GM columns that use stock GM turn signal switches.
• Complete factory heater harness assembly included.
• Separate under dash courtesy lamps for use along with your original dome/interior lighting.
• Instrument Cluster wiring is designed with a “cluster harness disconnect” system for easy service and assembly. Original terminals and PC board connector are provided for stock cluster connections. The system will also connect into most popular aftermarket gauges such as AUTOMETER, CLASSIC INSTRUMENTS, DAKOTA DIGITAL, STEWART WARNER, VDO and others.
• Many original switch connector bodies.
• Rear body harness assembly plugs into the main harness in the stock location and our longer leads allow for stock or custom routing of the wires. Rear body wiring includes complete backup light leads with correct lamp sockets, complete stop and tail light leads with correct lamp sockets, complete turn signal leads with correct lamp sockets, complete rear side marker leads with correct long focal length molded lamp sockets, complete license plate lead connection to plug into your lamps, and fuel tank sender wire with trunk grommet and tank connection.
• All the various connectors and terminals for your wiper/washer system are provided.
• Detailed color schematics and easy to understand installation instructions.

OPTIONAL PACKAGES can be added to this system, depending on your requirements.

• Optional Alternator Conversion Harness – allows use of a Delco CS130-D (serpentine belt, internal fan) series internally regulated alternator – Part # 500295
• Optional Alternator Conversion Harness – allows use of a 1984-99 Delco CS external fan series, internally regulated alternator – Part # VAK6986CS
• Optional Courtesy Light Delay Module Kit – Part # 510197
• Optional Torque Converter Lock-Up Switch Update Kit – Part # 500412
• Optional Terminal Crimping Tool Set – Part # 93963818

Some optional packages may not be available for all year/model vehicles. See catalog for more details.