the dealer said to call sevice publication division at 1-800-622-2033 but while they do carry sevice manuals, and sell them by sections, they no longer provide any information on 1986 trucks. fyi all you toyota truck fans.
manuals for many vehicles can be found and purchased on ebay.
There are numerous manuals available for this truck. My favorite is “Toyota Truck & Land Cruiser Owner’s Bible”. Available here at http://www.amazon.com/Toyota-Truck-Cruiser-Owners-Hands/dp/0837601592/ref=sr_1_1?ie=UTF8&s=books&qid=1265848013&sr=8-1-catcorr