I've had this 1990 Dodge Ram van since 2010. When I got it the mileage gauge & overheating gauge's were not working. Recently on a trip my Fuel gauge, Speedometer, & Cruise control all stopped working as well.
I was wondering what I would need to do to get my Gauge's up and running again?

 

Sounds like a failed instrument cluster. Grab one off eBay or out of a junkyard and swap it.

 

maybe the speed sensor on your tranny is at fault also

 

That would explain the lost of the cruise control and the speedo, but not the fuel gauge.