Bilstein says you can't press in new bushings
"Bushings are not covered under Bilstein’s limited lifetime warranty (See screenshot below for restrictions against our warranty policy). If a bushing has failed that prematurely, it’s typically indicative of an installation error. The bushings we use on these units are double bonded and volcanized to the lower eye-ring just like the OE/factory units are which we happen to build for Toyota too. Being that they are double bonded and volcanized, they are not replaceable and therefore not set up for individual purchase. If the bushing has been compromised, the entire unit will need to be replaced."
that's what I was told