This is a simple write up / How to. You can change the colors, and bulbs to your liking.
The gauge clusters on every datsun I have seen so far is a 194 Wedge based bulb.
For my preference. I replace the stock bulbs with 220 degree Cool White LEDs. They are plenty bright, without cutting into visibility at night. You can also remove the green plastic covers to be rid of the green color. It gives it more of a modern look to the gauges.
Now, For the back lighting. You will need to know how many lights in your cluster you will need for the back lighting. Figure 3-5, but make sure. For those, here is the link to the 220 degree bulbs.
http://www.superbrightleds.com/moreinfo ... -base/199/
You can change the color, but some colors are hard to see - Blue etc... If you want to change the gauge cluster you will HAVE to remove the green plastic covers in the gauges. It's very simple to do so.
For the dummy lights. I use these. They are just 90 degree wedge based bulbs. They point straight, and light up what have you perfectly.
You will need one blue for your bright indicator, three or four reds for your dummy lights. Turn signal indicators use a different bulb on certain cars. Some are the wedge based, some are the push in and twist kind. I can find the part if you need those.
http://www.superbrightleds.com/moreinfo ... -base/197/
My 510 - The first time I did it.
Before


After


Here's on a 620. It was a little more bright in person. But didn't cut into my ability to see at night at all.
Before

after
