I did that too. I think it needs it some more. I pulled them out as far as they would go, clamped them with hemostats and soaked them in a gallon bucket of Tide mixed with HOT water. When the water cooled enough to get my hands in, I agitated the mix. Did both front belts. The belts worked...
The sticky steering wheel thing was nasty!
I washed mine with dishsoapy water, TWICE. It was sooo gross. :yuck: The first rinse water was black. (we need a puking smiley)