Doing some catching up on you're thread, and like the others I'd like to pass on best wishes and prayers for your wife.

I like the work on the firewall template. I'm guessing you're going to be fabricating a new toe board and trans tunnel to fit around the 46RE?

I went thru that on my 37 Dodge PU project, those 46RE/RHs are a pretty big lump to work around.

Here's what I came up with.