Final answer:
A locked differential, also known as a spool differential, sends an equal amount of power to each drive wheel at all times, which is different from other differentials but can make turning difficult.
Step-by-step explanation:
The type of differential that sends an equal amount of power to each drive wheel at all times is known as a locked differential or a spool differential. This mechanism is different from other differentials, like the open differential or limited-slip differential, which allow for different amounts of power to be sent to each wheel depending on traction conditions. However, while a locked differential ensures equal power distribution, it can make turning difficult as both wheels rotate at the same speed, which is not ideal for most on-road driving situations.