Guys,
Thanks for your help. The pictures and measurements are great.
Now the real fun begins, trying to drilling the holes up there. 
Thanks again
Heem

“There is a time to laugh and a time not to laugh, and this is not one of them.”
Inspector Clouseau (Peter Sellers)
The Pink Panther
 

All,
I'm installing a dual exhaust system in my '66 convertible. I had the frame rails replaced, but unfortunately there are no holes drilled in the new frame rails for the tail pipe bracket bolts back by the tow brackets.  Does anyone know the exact location of where these holes should be drilled?  I've seen pictures which show them about two inches ahead of the rear shackle mount behind the tow brackets, but it would be a guess about how high low in the rail. Any help would be greatly appreciated. Thanks. 
Heem

I looked at that.  But I ended up shaving the tail cone rib to get the clearance I needed. I'll probably also replace the mount just because it's probably came new with the car.  Thanks for the info. Heem

I've installed a '83 T5 into my '66.  When I went to reinstall the emergency brake, I found that the equalizer bar struck the tail cone of the transmission. I'm going to need about 3/8" - probably more - of clearance.  The car had an automatic before.  I reused the old stock transmission mount with the new T-5 swap cross member bar.  All the articles I've read about the swap stated I could reuse the transmission mount, but none of them made any comment about there being any possible clearance problem with the equalizer bar.  I begining to think that maybe the mount had compressed overtime.  I bought the car in 1990 and I haven't changed it, but that seems to be a lot of compression to cause the problem.  Has anyone run into this before?  I'm open to any ideas.
Thanks,

Thanks for all the responses.  I think I will go with Steve's method (sorta).  I will use the stock seal and contour it to fit the transmission hump.  I also will be using some RTV between the seal and the hump.
Thanks again, Heem

All, I'm installing a T-5 in my '66 daily driver.  Is there a need for a shifter seal that fits on the outside of the car between the transmission and the floorboards? It seems this would be needed to stop splashing from leaking into the interior.  The transmission came with a stock shifter seal, but it looks like it mounts on the interior side. Thanks. Heem

Dropped in the tank and the filler neck.  Everything lined up almost dead on (whoo of relief).  I guess the only issue I have now is fixing the interference between the D/S rear bumper guard bracket vertical mounting bolt and the tank when installed. When the shop did the frame and sheetmetal work, they didn't drill the mounting holes for these brackets.  I was in the process of installing the brackets when I noticed this.
Guys, thanks for all your help.  Seriously.
Heem
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Speed is just a matter of money.  How fast do you want to go?