tonydp,
The picture of the V-8 on page one of this forum topic is identical to my 4.0 2002 sporttrac design. If you do not see damage on a visual inspection be sure to feel the hose for the non visible sides. The hole that was in my hose was on the bottom side as well as a pin hole on the inside bending of the 90degree turn on the hose. When I went to AutoZone he checked for a replacement PCV valve (the entire assembly) and from that was able to match just the elbow. The cost was $5.99 for the hose he gave me, so if you are in doubt, I would first see if I could find a replacement, and then go ahead and remove the old and put on the new, no clamps, clasps, or anything hold this elbow, I assume the pressure itself hold it in place.