'90 Pontiac 6000 LE speedometer

I have a question about a 6000 that I have. Sometimes when I drive it the speedometer tends to fall or move back and forth not telling me what speed I am driving. This usually happens after it has reached over 25mph. I'm not sure if it is the speedometer needle or something else... Thanks in advance!:biggrin:

The vehicle speed sensor is a fairly common problem and could be your issue. It's not impossible that the cluster is bad also.