My speedometer and tack are erratic and bounce back and forth while driving. on 2006 Ford F-350 Super Duty

This normally happens in cold weather. Any recommendations or solutions?

Asked by for the 2006 Ford F-350 Super Duty
There are many problems with those speedometer, more likely it needs to be replace.
Thanks for the fast response. When you refer to 'it', I assume you mean the instrument cluster, right?
Yes the instrument cluster.