Dashboard cluster

Just a quick question here, why does my speedometre, gas guage etc jump and go haywire from time to time? I am idling and doinf 200 mph at the same time, lol.

Just a quick question here, why does my speedometre, gas guage etc jump and go haywire from time to time? I am idling and doinf 200 mph at the same time, lol.
Take a look on this link for some explanations:
http://www.automotiveforums.com/vbulletin/showthread.php?t=732423&highlight=crazy+gauges

After a while they go bad. There are a couple contact points in the back of the cluster that corode after time and must be re-sodered. Better off pulling the cluster and getting a used one. There are 4 types not necessarily by model or VIN, that's why you must pull it. They ask you when you order it whick kind you have. If they don't BEWARE" for you may not be getting the correct part. Should cost you $50 - $100 shipped.

Good Luck,

AvalonJohn