I got some Vibra-tek ones but at £114, not cheap!
You could get the roller bearing ones from Lynx power engineering, but they are £200 including the front bushes. Should outlast any 306 if you keep up to the lubrication!!
You could get the roller bearing ones from Lynx power engineering, but they are £200 including the front bushes. Should outlast any 306 if you keep up to the lubrication!!