Radiator bushing installation tips?

[vardenafil]

I’m trying to install new radiator mount bushings on my k20. I watched several videos and they just use a prybar to lift the support and slide the new bushings in. I can not get the support lifted high enough to slide the new bushings in. Is there something I have to loosen or in bolt first? I thought about getting a floor jack and trying to raise the support up but I’m afraid to mess something up. Any tips on how to make this job easier?