ok my truck (1998 GMC sierra 1500 110k miles) blew up today. Pretty sure its a head gasket that went.

What are we guessing to fix it??? I'm think $1000 just to pull it apart and put a new gasket in, if nothign else need to be done.

FYI its being sold as soon as its fixxed. Tired of dumping $$$ into this truck.