Grinding when shifting -sometimes-

No washer between starter and bell housing. No bent bolts, must be the shadowing causing that effect.

68 dart, 318.

Dang wrong zbar? How can you tell?

Why is there a hole drilled to the left of where the rod attaches to the lower z-bar? Mine doesn't have that hole and less material there aslo. Might be a 70 on up z-bar.