Nope, this is a good link to find this info out at:
http://www.sylvania.com/ConsumerProducts/AutomotiveLighting/LampReplacementGuide/
According to that site, your 1993 Ranger has...
* 161's
* 194's
* 1815's
The best way to figure out how many of each you need is to actually open up the dash and pull them out and check. Here's what they say each bulb is used for:
Instrument-general
161
161LL SYLVANIA Long Life miniature bulbs perform twice as long as any standard miniature bulb. Designed for durability, lower maintenance and greater safety.
1815
194
194LL SYLVANIA Long Life miniature bulbs perform twice as long as any standard miniature bulb. Designed for durability, lower maintenance and greater safety.
Check engine indicator
194
194LL SYLVANIA Long Life miniature bulbs perform twice as long as any standard miniature bulb. Designed for durability, lower maintenance and greater safety.
Hi-beam indicator
194
194LL SYLVANIA Long Life miniature bulbs perform twice as long as any standard miniature bulb. Designed for durability, lower maintenance and greater safety.
Seat belt indicator
194
194LL SYLVANIA Long Life miniature bulbs perform twice as long as any standard miniature bulb. Designed for durability, lower maintenance and greater safety.
Brake warning
194
194LL SYLVANIA Long Life miniature bulbs perform twice as long as any standard miniature bulb. Designed for durability, lower maintenance and greater safety.
Automatic transmission indicator
194
194LL SYLVANIA Long Life miniature bulbs perform twice as long as any standard miniature bulb. Designed for durability, lower maintenance and greater safety.
Directional signal indicator
194
194LL SYLVANIA Long Life miniature bulbs perform twice as long as any standard miniature bulb. Designed for durability, lower maintenance and greater safety.
The applications presented in this replacement guide have been compiled using the best information available from the vehicle manufacturers at the time of your search. This guide is intended for general information purposes only, not to be construed as any type of warrantee as to any particular application. For specific applications the vehicle owner's manual should be consulted.
When two or more lamps are listed for the same application, remove the lamp and check the numerical designation.
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And here -->
http://www.superbrightleds.com/cgi-bin/store/index.cgi?action=DispPage&Page2Disp=/mini-wedge.html is the link to the page on SuperbrightLED's you're looking for.
And if you scroll down a bit, you'll see "Instrument Panel and Gauge LED Wedge Base bulbs" and that, I think, is what you should be looking for, but the original poster may be able to fill us in on which bulbs he actually used.
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I think the white ones are the right choice, based on the picture above they seem to have good performance.
