Unless problems develop in the next few days, this looks like a wrap up. Thank you all once again for all the help. I could not muster up the confidence to tackle such projects if it weren't for the expertise in here. ...If it takes bailing wire, duct tape, Bragg's Apple Cider Vinegar, and a shaman on retainer, I am going to keep this T-Bird on the road for as long as I can.
Okay, what did I take from this particular engine project?
* That such a task is friggin' messy, no matter how well I tried to prepare for it. Tide and scrubbing of the driveway scheduled for tomorrow.
* No need to remove the inner rubber tire well as some had suggested.
* That 3/8ths was the way to go with this job. The right size and just strong enough. A 1/4" would be too small/weak for the torquing needed, and 1/2" too big for that tight area.
* That one has got to have patience. The problem was not too difficult to size up, but WOW was it the consummate PITA on many fronts -- I was warned. At times I likened the experience to building a boat in a bottle -- working inside opaque glass, with wet noodles as my handles.
* That just because a tool says 'Snap On' or 'Mac' doesn't mean it won't eventually wear or fail when one needs them the most. I was working with some extensions that I bought at the swap meet once which had clearly seen their best years. Extensions and universal joints (the wet noodle reference) that had lost their tight fit did not mate well with newer sockets and extensions.
* That I need a good set of combination metric wrenches. Such a wrench would have helped address one, maybe two, of the four bolts.
* That's all that comes to mind for now. I hope this issue is behind me now. Thank you all again.
... I do have one question: How does a 'wobble' extension work exactly? I don't believe I have any of those in any of my tool boxes.