oil pressure gauge

I need to change my oil pressure gauge on my 82 corvette. Can you get to it from the inside without pulling out the dash. I notice there are 4 screws holding it on. Also, would this be an easy job? Thanks

You will need to remove the center stack that holds the gauges.  The hardest part IIRC is removing the nut at the back of the radio and the two nuts that are on the base of the stack that attach it to the front of the console.