No.
But the bulkhead connections should still be checked. Probably will need some cleaning. If they show signs of overheating, then decide from there what ought to be done. If its the alternator feed (the wire that supplies the alternator's output), then running a parallel wire through a grommet to the ammeter's alternator stud will take the load off that connection.
Also, in my experience, the headlight wiring in the A-bodies was barely adequate for the newer higher wattage headlamps introduced around '73. Thin wires and lots of connections in that circuit. I've had breakers trip, and connectors melt. Maybe '76 is OK - a lot of changes that year. Using relays drawing power right from the alternator solves all that. So if you do a bit if night driving, do consider that.
