[b454rat]

Most blocks will have either a hole already there for a pivot ball, or there will be a boss, just have to drill and tap. But I don't know if that was for trucks or cars. I did one to a car, but thinking it is for cars and not trucks. I had a 75 and 84 that had the ball on the bell. Made it fun wheeling, putting it in 4 low with shot motor mounts would let the motor twist enough to let the z-bar fall out.