I have an 89 toyota PU 4x4, 4 cyl. I am going to change the thermostat in it, it isn't throwing enough heat. I have no idea where the thermostat goes, can someone give me a little help.

oh forget that, I changed it and it wasn't bad, now going to flush the rad, and see if that helps......

Best thing to do is buy a chiltons @ an auto parts store.