I bought a 83 Malibu wagon with a 350 in it and the gauge cluster has a speedo, clock, gas gauge, idiot lights for the oil, battery and temp. It looks like the factory clusters with the all the engine gauges and a tach will fit but I'm not sure about the wires. Does anyone know if the car equipped with the wires for the factory added gauges and I would just have to change out the senders or make minor changes to whats already there, or make major changes to make them work? I would rather install the factory cluster set up than an after market set of gauges. I guess in a pinch I could always install a set of little gauges in the factory instrument panel. Any info about the wires would be helpful. Thanks, Ed.