How hard is it to remove the sub-frame mounts?

[gibbons]

When I was trying anything and everything solve a clunk in the front end (that turned out to be work swaybar linkages) I put those blue urethane inserts in the voids of my sub-frame mounts. The extra stiffness made the car just a bit buzzy at idle. I would like to put new mounts in, anyone done that? Just wondering if it's as bad as doing the motor mounts. Thanks.

[vtl]

I don't have access to the car lift, didn't want to drop the subframe, so had the bushings drilled out with a 2-1/2" drywall hole saw attachment:



Note that Home Depot impact drill does nothing to the bushing, you need a good drill.