The negative terminal is to chassis ground. This is supported by my personal experience, along with the original wiring diagram.
The easiest way to assure yourself (assuming that you don't have a voltmeter) is to follow the wire from the positive terminal straight to the starter.
Chevrolet Celebrity uses negative ground, there is no positive ground.
red is positive on a negative ground system
There are 2 battery terminals. A positive or hot and a negative or ground. The positive is slightly larger than the negative.
The Suburban has a negative ground system.
Batteries are neither positive nor negative ground. It is the circuit itself that determines the common ground. For example: If I have two circuits, one needing 6vdc negative ground and the other needing 6vdc positive ground, the battery would be installed the same way in both circuits (positive terminal on the battery to the positive connection in the circuit, regardless of whether the circuit is positive or negative ground). The reason for labeling the ground as Positive or Negative has more to do with how the circuit is wired up, than the actual voltage source. The explanation for that is beyond the scope of this answer.
Electrical sytem positive ground
Negative - (Black) is Ground, Positive + (Red) is Hot. Ground wire goes to Negative (Black) it goes from negative on battery to engine for ground.
The 1937 Oldsmobile is negative ground.
Cars in which the positive terminal of the battery is connected to the chassis. They require specially designed components built for positive ground cars. The usual configuration is a negative ground (the negative battery terminal connected to the car's chassis).
Red cable to positive, black cable to negative.
positive
The negative battery terminal is on the battery. They don't have a wire coming from it like they do the positive. For charging purposes, the engine block acts as the battery ground. When disconnecting the negative at the battery, the negative terminal usually has a black wire and the positive has a red.