The little flat bar goes horizontally, under the wheel cylinder to push out the front shoe when you pull on the emergency brake. You'll also need to scout up the little spring and washer-like clip that go over the end and holds it in place.
Belaire bolt is right on the money about a manual....especially for a bigger rig. There are going to be a number of significant differences between the the 1/2 tons and the heavier trucks.
Dave
