[phantomfozzy]

I have an '07 fxt, the backlighting is green and neither myself or the missus is happy with that. Those of you who have taken cluster apart, would it be relatively simple to swap in some red leds?

 

[flstffxe]

Not that simple. The color is a film on the back of the gauge display, the bulbs are clear. It is very tedious to do with a high rate of people turning their gauges into junk.....I would recommend a trip to the junk yard for a spare set of gauges to do this to and then swap them in if they turn out good.

Here is a good thread for starters.
Gauge Cluster Color Change: LED's and Gels - NASIOC