I decided that I wanted to remove my factory roof rack. I never used it, and eventually I'll upgrade to a full Baja rack or something. so I searched around, and surprisingly not many 4th gen owners have removed their rack and left it that way (instead of replacing it with a cargo rack or whatever). I did find this thread about doing the same for a 5th gen:
DIY: Roof Rack Delete (w/ pics)
so.. I figured what the heck, I'll order up the parts and see if the pieces fit the 4th gen. and they do! so here's my short writeup with some pics. i'll start with the process after the rack is already off.
here is the parts list again, for reference:
8pcs - Part# 90119-08C47 (roof bolts w/ rubber washers)
4pcs - Part# 63185-42020 (roof brackets w/ foam pads)
4pcs - Part# 75596-35030 (roof plastic covers)
you'll need: a 10mm socket and probably a scrub sponge with some soap, and something to scrape off the old foam.
remove all the old foam:
place the clip over the holes with the small arrow point out (the arrow is hard to see in the pic):
then clip the molding into place with the arrow pointing out, and scrub the old grime off the paint:
and now enjoy your truck without the rack!