Hi Steve thanks for the welcome and advice. I have not done an in depth search,but I shall look at the sites you mentioned and keep searching,it is a shame as the air suspension is working fine,it seems a silly to look at replacing the whole thing just because the bush is a little worn.But do you know if the 430 can be converted to the standard suspension as this may be a cheaper alternative to the £1600 pound replacements Lexus have quoted.