Tracy should confirm this but I think you want your oil return to enter the pan above the oil level in the pan. Otherwise you risk oil backing up in the redrive. You also risk pressurizing the drive and possibly blowing a seal. I know in turbo installs this is true and a return line into the pan below oil level is a definite no-no.

I’ll let Tracy speak up if he thinks this will be a problem.  I just can’t see it as an issue with the redrive.  It’s still a gravity feed, and there isn’t any pressure.

As I see it, the only issue with returning the oil below the oil level in the pan is if it is possible (or likely) that an air bubble gets trapped in the drain line between the drive and the oil level.  Doesn’t seem likely with a 3/8” drain line considering the small orifice in the feed line, but perhaps we can’t rule out that there may be conditions where it could happen.

Al