[Big Kev-O]

There should be two wires leaving the battery post terminal. The large one that goes to you starter is not a fusible link. The small wire that connects to the junction block on the fender should have a fusible link. If you use the search function and look for "fusible link" you will find detailed photos.

This thread has full wiring diagrams in color for our trucks.
http://67-72chevytrucks.com/vboard/s...d.php?t=185856

Here is is the engine compartment wiring diagram. It shows what you should have.