So Robert - How's the underside of the cowl in this car? Are you gonna pull all the dash bits and give that a good inspection? Holes in the floor often mean that is the cause.

It's still far better than I have seen. Best to keep as much of the original you can.

And Steve - I wish I could have taken pictures of the Ranchero being cut up that should have been the one I saved! But I digress...