On my 1980 cj5 the gauges peg out after you turn it on The book says its a faulty instrument voltage regulator Anyone know where that is?

In a 1980 Jeep CJ5, the instrument voltage regulator is typically located on the back of the instrument cluster. It's a small rectangular component that regulates the voltage sent to the gauges. To access it, you’ll need to remove the instrument cluster from the dashboard. If you're experiencing issues, you may need to replace the regulator to resolve the pegging problem with the gauges.