If I remember, the order is: loosen/remove bolt from front motor mount; loosen shifter cables; drop front beam.
I remember reading how several people had problems getting to the nut for that mount. I think that it was easy for me because of the length of my 1/2" drive extension. With feet under rear bumper and head under front beam looking up, to the right, there is more room between front beam and the car chassis in front of it. There is a wide spot. If I remember, my 6 or 8" extension on the right socket reached to just this location. My ratchet went up through this wide spot to get to the bolt.
If you have the options, try a shallow socket and a deep socket with each extension/ratchet combo you have to see if you can find one that works. Once I found a combo that worked, this proved to be a bit easier than a few other parts. The nut isn't that tight to be a big problem.
The steps that are the hardest to swap headers, to me, included getting the rear beam back on. (See previous thread where I posted questions on the solution) and all the fussing with removing and re-installing the rear header and the shield around the passenger side CV joint. All the effort required to get some of those bolts started and the tool on to tighten was frustrating.
Of course, if you got this far, it is likely that you already removed your cats which means you got those fastners off. That and the O2 sensors are usually the worst part of the project.
The good news, headers are well worth it on NA1 engines.
