I'm too long in the tooth and worn out to go into the business but thanks for the compliment muddacres.
I should have made this decision before I painted my diff but now I decided to put a proper drain in my diff, don't know why Chrysler didn't do this from the outset. I purchased a proper 3/8 drain bung and drilled a hole that fit it nicely,
After test fitting the bung it purtruded into the case far enough the it wouldn't drain completely so I drilled 4 holes in the side so it would fully drain,
Burned it in permanently, just needs a bit of touch up paint work.
Also took my bell to work and got some blue on it, forgot to take it when I did the engine,