Great job! Did you happen to take any photos of the job? I'm curious where you drilled the hole on the PTU unit. Also, what size drill bit, depth drilled, tap size, plug used, etc. I'd do this in a heartbeat if I had a more clear understanding of the procedure.
I had mine replaced about a year ago and it probably needs a fluid change by now and the dealer refuses to do it saying it's not necessary. So I asked them, if not necessary, why did it fail? They then said...'we just don't do that job'.
Thanks!
~Gary