thanks Isuzu95 for your crank holder tool suggestion. Please clarify a couple of things:
Why wolmonized lumber? Is it stronger. Do you really think it makes a difference? Or does your Isuzu have termites ? LOL

Seriously, also, I'm unclear about the 2nd piece of lumber you mention. How does it work? (is it matched to length of 'holder piece', so the holder piece is jammed against it on the floor?

I'm afraid on my 92 Trooper, the oil filter/oil cooler assembly would be in the way of the holder piece. Did your application have any interference problems?
Did you try using the tool from above, holding it while torqueing w/other hand, or w/helper?

Thanks for help, and patience in helping me visualize this, before I attempt.

1992 sohc trooper 3.2l v6 automatic . . . as is

i love a good intermittent electrical challenge. . .especially when it's someone else's.