Ford F150 - 4X4 dash switch

I have a 2001 F150/7700 and the light that illuminates the 4X4 switch is bad. The dealer tells me I have to replace the whole switch, $45.00! It's an odd ball bulb. At first I thought it might be an led but it's not. Anyone replaced one of these? Any source for just the bulb?

Junkyard, or maybe RadioShack or an electronics supply house. Look thru these pics.

If you pull your bulb & measure the diameter & length of the barrel, there's a SLIM chance I have a used one that will fit.

You could so a lil rewiring and put a 3mm led and holder next to it on the dash...probably less then $10 in parts.