Blowed wheel seels

Figured I write a post and get some feedback,

I haul local flatbed and I’m in some dusty conditions also a good bit of time truck is a 1995 international 9400

I delivered my load today and was unstrapping and notice gear oil everywhere on my back drive axel looked like a painting all over everything airbags you name it , wasn’t there when I got loaded this morning and was a 3 hour drive. Nothing was smoking or no loss of power or noises. They took 3 hours to unload so it did cool off a bit because it was hot the axel itself when I got under there. Took the vent off to see if it was clogged didn’t see much and cleaned it out with brake cleaner and put it back on.

I drove it to the yard about 50 miles away I park at that has a shop and kept an eye out for or anything out of the ordinary, got to the yard and the other wheel seel blew on the driver side of the rear axle so now both sides blew out. Brake pads soaked with oil. The shop is gonna get to it tomorrow and see what the issue it. Any insight of what might be the issue? Here’s some pics of how it looked when I got back

 

Also have noticed the outside of the diff has been sweating and wet lately but no leaks from the gasket

 

Iv had the truck a year did the front axle seals but haven’t touched these since I have had the truck only ran about 30k miles since Iv had it, it was just one then the 2nd went not long after I am glad I noticed it before heading further from home to get a coil

 

The shop did mention they where gonna check the wheel bearings the vent is also old I’ll put a new one on can’t hurt

 

Welll update time I feel like an idiot actually, rear wheel seels weren’t leaking after shop steamed and cleaned all the oil up.

Apparently when I took my truck the day before to local loves/speedco line zone the tech didn’t torque my fill plug in my front diff and 300 miles of driving later it rattled my fill plug out and shot most of all my gear oil
Out from my front diff out, which is why I thought I blew my wheel seels out. I didn’t even look at the front plug in the midst of everything. They are gonna pull my front diff and re seal it, it was leaking some anyway from gasket and inspect my front diff hoping it will be okay wasnt making noises or smoking when I got back to the yard yesterday