Looks like either
T10mm WedgeBase Sylvania#74\906\912, Do NOT use Sylvania#921 They Burn Too Hot & Melt Plastic
T5mm WedgeBase Sylvania#161\194 , Do NOT Use Sylvania#168\2825 They Burn Too Hot & Melt Plastic
Measure bulb base width MilliMeters to be sure.
Do NOT recommend swapping in LEDs;
they're polarized & look good at first but quickly flicker & go out;
glow dimly in several circuits when they should be fully off;
bulbs are simple & last much longer.
Do recommend while you've got dash center panel & cluster apart, change all bulbs & do general house cleaning inside dash.
My 2001 ExST (same as 2001 Ranger) needs 16ea T5s & 8ea T10s in the dash, not sure about your 1999\2008.
Hope this helps.
Read & watch the ForumThreads & Videos below for details on removing the center Air+Radio panel, then left InstrumentCluster panel, to allow replacing Lamps. Using LightEmittingDiods\LEDs to replace original IncandescentBulbs is NOT recommended; the LEDs will NOT properly operate in several...
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