My car has a cover over the wiper trough so mine is a little more difficult to get to the holes in the bulkhead as yu can see.  The holes are plugged with rubber plugs that can be pushed out.  I took mine out and left them out.  The passengers side latch is located almost directly in front of the hole in the passengers side wiper trough. The part you will be probing for is shown HERE with a screwdriver.  You will need to push DOWN on this part with your tool.  The tool will need to be bent a little in order to get through the trough and engage the release as you see HERE.  This shot shows the tool engaging the release  . Since I have to go through the wiper door cover I made a SPECIAL TOOL  that you see here with a 12 inch scale.  I hope these help you

 

 

Played golf yesterday. Saw your message this morning and after rain stopped around 12:30 I decided to work on the hood. I got flat stock earlier in the week an made tool similar to yours.

Propped drivers side of hood open as far as I could. The hardest part was getting the grommet out of the hole. It was inserted from inside and was blocking the lever when I pushed it in. Once I got that moved, the lever was no more than a 1/4 to 1/2 inch inside and visible from where I had to press down. I bent the tool a little (45% on flat side) allowing me to reach from above rather than from side. Pressed a socket extension down on the tool and it unlatched with ease.

 

I need a new cable now. The end connection was broken. It also looks like this may have been an after market because it was long with a bit of slack as some other threads noted.

Thanks again, your pic did the trick.

 

 

 

 

 

 

By the way I uploaded my vette picture. Did it show on the repley? I haven't been active on the site until this week when I reupped my membership and posted my thread. I don't see the picture when I get a reply back.

 

But, you got me back on the road again.