Per the link above I had to remove my entire front clip after restoring my panel to
repair a catastrophic failure of a staked rope seal retainer in the timing cover of
the 455 Buick I have shoehorned in there.

Needless to say I was not happy, but proceeded. To my surprise it went by the book and with all the new nuts and bolts I used it really came out quickly. I carefully lifted it at the core support with the engine crane and rolled it back out of the way with no problems. Got it off in less than 45 minutes! I used a few tapered drifts to help align the holes for fenders, toe board, etc. while putting it all back together.