Traxxasdude. All servos DO NOT have a servo saver but they generally come with different servo horns. A servo do not need a servo saver to operate. Particularly for example if you use it for throttle control in a nitro car.
Some kits such as the T3, B3, TC3, GT have a built in servo saver. You can also purchase a servo saver for the type of servo you are using.
A servo saver is built in the T3 so you do not need another one.
Try centering your servo horn as explained before, and if this do not work then you may need another servo.
Can somebody explain the pros and cons of digital servos?