Tranny Dipstick Bolt Tip
Heres what I did:
Once everything is out of the way such as exhaust and stuff, get a 15mm NON-REVERSIBLE GEARWRENCH.
Next, stick your right arm back there and put the closed end on the bolt, with the open end facing up/diagonally.
Now, grab you biggest prybar, which should fit in the open end of the wrench nicely, and pry the **** out of it.
In my case, and broke loose and the wrench fell, and I didnt even know it broke the bolt loose til I when back and tried again lol.
So anyone doing a head swap on an auto car with need to get this bolt out, and was a pain the the *** in my case.
Good luck!
-Scott


