This would be an easy install if it were not for the crankcase breather tube being routed through the engine flywheel cover. Since the tube was cut flush with the flywheel cover there was now way to grab it to push it onto the stub on the air cleaner base. Tried to remove the other end of the breather tube from the valve cover, but it was tight (and old) and I was afraid of breaking it at that end. Solution was to unscrew the valve cover (4 screws) and tilt it so I could pull more of the breather tube thru the engine cover allowing me to grab it and connect it to the air cleaner base. Once that connection was made, the rest of the assembly was a "cake walk".