me me me me me me!!!
yep, definitaley a dead alternator, same thing happened to me on my 83 4x4. oh and the brake and battery lights will always be automatically stuck on when an alternator goes out. also, if for some reason when you change the alternator and those lights stay on or then come on later but the alternator is charging correctly, there is a relay under the dash that controls these two lights. sometimes the relay will fail, i think it's on the pass side. also a great forum to get tech info on toyota trucks is pirate4x4.com. they have a bulletin board just like this and any question about your truck could be answered there even if it's 2wd. good luck