I guess I was a little ambiguous. Looking from the front of the truck there is a nut on the front and the back of the fork, which is the lever that goes into the clutch housing. To decrease free travel, turn the back nut a turn or to clockwise. Then turn the front nut clockwise until the rod is tight on the fork again. To increase free play turn the front nut counter clockwise a round or two. Then turn the rear nut counter clockwise until the rod is tight in the fork again. Do this until you get the desired free travel. I think the book calls for about 3/4" pedal free travel. I like a little more because if you do not have enough free travel, the throwout bearing will run with the clutch and wear itself out quickly. Make sure you have a return spring on the rod to keep the pedal up. Springs can break and fall out and people don't realize they are gone until the throwout bearing is squealing.
