I got some LED bulbs like the following which improved things a lot in the centre of the gauge but not the numbers around the edge.
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So i got bored today and decided to take the gauges apart and have a look.
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The backlight leaks though the holes around the numbers but as they are painted black the light reflects pretty pants. So half hour later and some white paint i ended up with this (after 1 coat i did 2 in the end):
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And the end result (hard to get a picture on crap phone camera)
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Much improved illumination and a nice crisp white like a modern car rather than the old dull orange bulbs
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