By carfully uncrimping around the gage you can seperate the gage. Carefully remove the gage from the sunpro case and put the red tag back in place on the two studs to indicate (+) and (-). Now for the fun. Remove the instrument cluster from the car, I mark the wires to indicate Temp, Oil and fuel. You'll notice removed the steering wheel, it makes it so much easier, anyway the spring had come loose from the steering wheek lock and I needed to repaint the column anyway.
Instrument cluster removed