Hey Jerry,
Not being a jerk but a couple of us have written some very indepth ways of doing that in the past. Mine was about 8 months ago, but others have been more recent. Its a pain, and I dropped the part of the subframe closest to the bushings, tho others have said you don't need to. Consensus seems to be taking the 13mm (or is it 11/15?) and grind it down thinner...so it'll fit between the bolt head and firewall.
