hasn't been driven in 15 years
 

i inherited a 72 ford f-250 from my grandfather and it has been in his garage for 15 years without being driven i am looking to get it running and i dont know were to start? Just looking for a starting point.

First change the oil. Make sure it still has antifreeze. Then you probably should prime the engine to get some oil flowing. I would run a gas line to a separate portable tank with fresh fuel, too. After that make sure you have a good battery. Then try cranking it!