George, I have a 98, and after having an 86, which was easy, since it had
rain gutters (which the 98 doesn't), I decided to use Yakima's 72" Top
Tracks, which I installed as per the directions, and used Thule's 430 Feet
with the TK1 adapters. My rack is now rock solid, and if I wanted to mount a
luggage rack on top, I could do it also. I saved a couple of inches in
height using this method, which is important to me to allow my wife to park
in parking garages in Seattle.
I paid $120 for the Top Tracks, and about $60 for the 430 Tracker Feet and
the TK1 adapters on Ebay, and used the Thule bars I had from the old rack.
Works great, should last the life of the truck.