If you've got bushings that have hardened to the point of being brittle, there are probably plenty of good-condition used ones available from people who have converted to open-driveline systems. Try a request in the "Parts Wanted" forum, and you'll probably come up with a lifetime supply free, or at least inexpensively. As long as there's a little flex left, a good cleanup with a stiff-bristle brush and a strong mixture of hot water and dishwashing liquid, followed by a light application of brake fluid to keep things slippery without petroleum-based oil deteriotrating the rubber should get you back in shape.
Jerry
Last edited by Hotrod Lincoln; 02/16/2011 2:58 AM.