Here's the scoop on lubing the stock rack:
Remove the front compartment bucket. It's a plastic piece that is held in with five or six screws along the front edge and two push fasteners in each three locations on the sides and rear. Once the fasteners are out the bucket lifts right out with a little maneuvering. Once the bucket is out you can get to the top of the rack. Remove the locknut on the adjuster plug. This may be hard; I had to have a special wrench laser cut out of 1/4" steel plate to grab the @#$% thing. Remove the adjuster plug. Drill a small hole in the top of it and add a zerk fitting. Replace the adjuster plug and preload as described the shop manual (tighten it until it bottoms out, then back off 60-90 degrees). Replace the locknut.
You can now use the zerk fitting to squirt as much grease into the rack as you want. Install a helper in the driver's seat and have he/she/it turn the wheel back and forth lock to lock while you squirt liberal doses of your favorite grease into the rack.