Manuals (Was Speedo Prob)
Check eBay for shop manuals etc. They have them both in paper and on CD. I just saw a 92 Shop Manual for about $20. Prices are coming down a bit as more turn up.
My folks have a 92 manual that they don't need any more too. THey had asked me about it, but I already had one. I'll probably throw it on ebay for them.
EVTM- Electrical Vacume Troubleshooting Manual
Good piece for general signal tracing. Not a real big manual, but nice tidbits.... like how to disable your rolling door lock feature!!! (auto door locks) I think this was a feature with the keyless entry cars only.... UNFORTUNATELY, when it comes to codes etc, they are NOT in this book as you'd expect.....
For the life of me, I can't remember the last book. This is a monster!!!! 5-6 inches thick! Covers all the various codes, engine, trans, brakes, etc that the computer puts out, plus how to fix....
If you go the CD route, be certain that you are getting the whole tamale! Shop manual, EVTM, and the code section. Even more cool would be the book on the AODE trannies too! This is a very special piece!