For those who live in winter climates, you want maximum traction in snow, so install snow tires at all four corners of the vehicle. This will give you maximum traction in all winter conditions. On a front wheel drive vehicle, if you install snow tires only on the front, you will find that while cornering, the rear of the vehicle may fish tail. On a rear wheel drive vehicle the opposite is true. On four-wheel drive vehicles, four snow tires makes for sure footed traction in all winter conditions.