dave in delmar,
Check out
www.ebay.com
I bought a factory manual for my '83 for $35.00. Factory manuals are just awsome. They have so much detail. If you need specific information on something let me know. My '83 should be fairly identical except for the cruise control, wiper options and maybe some emmission stuff.
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Gerardo
1983 Custom Truck
TX Plates: "BAD BOW"
http://www.geocities.com/abetterchemist/