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GEAR SET

The gear set specifies which gears are used in the transmission. There are a maximum of six gears plus reverse. The gears are specified as a ratio. The ratio is the ratio of input shaft speed to output shaft speed. There are many preset sets to select from or the player can specify each gear individually.

Rear differential
The rear differential is the final gear of the transmission. The gear ratio as well as the type can be specified. A normal differential will allow one wheel to slip while the other receives no power. A limited-slip differential will allow only a small amount of slippage and a locked differential will always have both wheels moving at the same speed.