7-ton MTVR steering gear box leaking

[CM1RETIRED]

So I just about had everything wrapped up on the truck and the gear box sprung a leak. Would you guys know why? Its not leaking from the seals. There is what appears to be a weep hole in the bottom of the gearbox. It comes out pretty fast when turning the wheel. I just want to be sure its not over pressure or something... I dont want to ruin a brand-new gear box. Anyway let me hear your thoughts. Picture shows the hole the oil leaks from. There is a rubber grommet here on my parts truck.

Always rebuild both boxes if only one leaks. We have a transmission jack with some 4x4's that will drop the tray down and it rolls out from under truck. When you remove Pittman arms locate timing marks some trucks have faint arrows that will disappear with a wire brush and then you'll be guessing. The rubber plug you mention goes back in after you drive seal back in. I work for the Seabees as federal employee and have done a few of these and there are plenty leaking all over the shops from old, degraded seals.