I've never replaced a bush before, I just ignore them and get them done when I get my shock serviced. I'm feeling a bit cheap at the moment, and my shock appears to be working fine, so I might skip the service and just install a bush myself. http://www.tftunedshox.com/mount_kits.htm I know I need 22mmx8mmx12.7mm, so I have the option of three different coatings on the bush - DU, DP or polymer. I can't see anywhere that explains the differences. I'll ask them the same question when I call to order it tomorrow, but for now I thought I'd ask the 'monkeys. I'm probably going to go for the "heavy duty" kit unless anyone can tell me a reason not to? PS I'm I stupid to not get my shock serviced? I'm reluctant to spend that sort of money (£75, a quarter the cost of a new DHX5) when I think it's working fine at the moment?