New to mightyram50, not to Mitsubishi...

[tortron]

There should be a blanked off seatbelt light in your 1st gen cluster geezer, the ones i have here do

its all set up, just needs a bulb and being connected


edit*
i have the guts of the one i cut up for my holden gauges to go in to. i would say that the framework of any markets instrument cluster would be identical, but maybe yours could have a solid blanking piece rather than the coloured plastic behind the face. if it does i can just send you the appropriate bits, they will fit in a letter