My speedometer fluctuates from 0 to 120 while driving maybe 55 or 30? on 1995 Toyota Corolla

Last night while I was driving the speedometer needle moved erratically.. I was not moving more than 50 mph and even when I slowed down it kept fluctuating. This was the first time that it has happened.

Asked by for the 1995 Toyota Corolla
Repair or Replace speedometer itself!