Tonight's update
got the split case beadblasted and cleaned, figured some stuff out. I should have some pictures of the toybox split-case in the next few days
on to the pictures
If your gonna have someone build a Toyota driveline, why not ask the best
I haven't seen this done before

sight tubes to check the oil level.
And I'm pretty sure this is new(fittings are just mock up, more bling is needed before its done)