@davidnunn posted:Pantera Performance sells bushings made from graphite impregnated polyurethane. Apparently, they do not squeak but they are harder than regular polyurethane bushings.
Dennis' bushings also have a hexagonal sleeve core if my memory serves, which I think also helps prevent them rotating on the inner sleeve. They are on my GT5 and I've driven it for 14 years and cannot recall ever greasing them.