Have you looked at poly bushes?
On this site they are an interference fit:-
http://www.polybush.co.uk/pages/why-use-polybush
Polybush's are fitted using normal workshop tools and equipment. Our bushes are designed to fit in the same way as original equipment bushes. Due to our interference fit no grease is needed, leaving customers with a real fit and forget solution. Where necessary, Polybush use low friction material to ensure free movement of the bush with mating components.