ive fitted most types and with the exception of pattern rubber bushes which dont fit properly ,britpart yellow bushes have performed well just as others ,i have had failures with all types even genuine depends on alot of things but for most people fitting poly must be easier no press or tooling needed ,it is too easy to say ****part ,one of my trucks has run on britpart h/d springs and gas shockers and yellow bushes for a few years now still perform as new,worn shocker mounts have the biggest effect on wearing bushes aND LIKE WISE THROUGHOUT VEHICLE