I just did mine, and cut the rear bolt heads with a grinder, got lucky on the middle ones, and used a sawzall/grinder under the radiator support. I had to cut the middle bushings out, though, because of the sleeve/washer thingies built in.

The factory bushings have metal sleeves/washers, and my poly didn't come with any, and the stockers were either too rusted or too cut up to use.

I just got some 1/2 inch bolts, then had some sleeves made up to slide inside the replacement bushings so the bolts fit tight instead of floppin around inside the bushings.

I dunno if you can get just the sleeve/washers from ford or not, but it would be easier.

Anyway, its a major PITA, I'm glad its over, and won't ever do it again!!