D 350 Pickup L6-359 5.9L DSL (1989)
Insert the trough the full length of the cam bore.
Feed the Installation tool down the tappet bore and into the trough.
Feed the installation tool through the cam bores by carefully pulling the trough/installation tool out the front. The barrier at the rear of the trough
will assure the tool will be pulled out with it.
Lubricate the tappets at locations A and B with Lubriplate 105.