Welcome to the site..
Lets get down to fixing that bad girl.
If it has a timing belt change it. It may have never been done and you could be asking for trouble if it's old. Next we always say the fuel filter. Those are the 2 main neglected items. After that the oils in the rear end and trany. We should really make a thread for the new owners and what they should do to bring there truck up to a good standard. Since no one but us original owners know what has been done last.