Thanks Ken!...but I found it!
The SPECS show it being in a different place but I found it tucked tightly behind the front skid plate. I was confident that I was wasting my time pulling the skid plate because I felt I could see everything clearly enough but.......NO. Once I dropped the plate there it was looking just like a "fill plug"!! I wasted 3 days whining about it rather than grab a wrench and turn a few bolts!
Lesson learned! I filled the Engine oil today along with the Tranny...over filled both!!!!! Spent all afternoon messing with a syringe to suck the excess out.
I'll do the front diff tomorrow and NOT over fill it. It supposedly only takes 0.06 of a quart. I'm also using some "limited slip differential fluid" for my Corvette. Maybe that'll help with the 'ol "Mule Differential Chatter".
Thanks again,
DJ