1994 Ranger Dash Light Replacement Write-up
 

My ranger only had a couple of dash backlights still working, So i ordered all new bulbs and replaced them.

The dash bulbs are all GE 194 model bulbs. You can find 10x bulk packs of Sylvania 194LL (long life) bulbs for 10-15 bucks a pack shipped. The dash uses 17 bulbs total, 5 of which are for illumination.

Here is a how-to write up for your enjoyment.
Ford Ranger - Useful-Info