Most times what would be leaking from the boots on the rack would be power steering fluid. I suppose it would be possible with a split there that it could leak some grease from the inner tie-rod end.
Does the grease seem to be slung around any? It really doesn't take much of a tear in the CV boot for grease to get thrown out of those due to the rotation speed. Also, the tear is often hidden within the crease of the boot, so you have to push it open some to see it. A torn CV boot is a lot more common than a torn boot on the rack.
Black 2000 SSEi, Silverstar Headlights, Angel Eyes fogs, 3rd brake light overlay, hi-flo cat, drilled 180 degree thermostat, Intense FWI, PCM, shift kit, and 3.4 Pulley. Solid front mount.