After searching the archives here, I realized there wasn't much current info regarding bug deflectors. I did locate older threads in which numerous owners complained that their aftermarket deflectors would vibrate, shake the hood, make odd noises, and generally misbehave at highway speeds. Due in part to my recent adventures with Westin step bars, I decided not to take any chances. I headed straight for the local Ford dealer and picked up a high-profile, smoke-color, wraparound bug shield. The part number to fit the 2005 F150 is 4L3Z-16C900-AA.

Installation of the deflector was reasonably straightforward. The only trick is holding it in place (after removing the grille) while the two clips at the far ends are positioned. I used a pair of plastic, spring-loaded, woodworking clamps to hold the deflector against the hood lip during this step. The two metal clips slide over the front edge of the hood at each end, and the hardware kit includes two clear plastic press-on squares (postage stamp size) to protect the topside paint. Nothing is included to protect paint on the underside of the hood, so I added two pieces of tape for that purpose. The best thing for this is probably thick, 3M clear packing tape (not the cheap stuff). I used small strips of fiberglass tape from a roll I already had in the shop.

Since installing the deflector this afternoon, I have tested the truck at 85. I'm glad to say that the deflector is stable as a rock, the hood doesn't vibrate at all, and there are no odd noises.

As a final note, Ford's choice of "high-profile" in describing this deflector is really a misnomer. I haven't seen the low-profile version, but it's difficult to imagine anything less obtrusive than this design. In fact, I would be hard pressed to understand why anyone would want a smaller (and less effective) deflector. I'm sure anyone who's seen this accessory knows what I mean.

Hope this is helpful to other deflector purchasers.