Went on a one way trip tonight...

[Cam-Shaft]

Needed to go to the thrift shop to pick up a shelf for my mom. Truck started fine as always but took awhile to warm up and kept having issues idling... Didn't think anything of it and went to get some gas.
Filled it up and went on my way. Idling was funky still but it was running. The floor hinge gas pedal broke off at this point so I tossed it to my passenger and kept on driving with the peg. Truck was jerky but I attributed that to me driving with boots on the gas pedal linkage.
Got another few miles when the truck sputtered out. Wondering what was up, I coasted into a nearby parking lot and got out. Truck wouldn't start so went next door to advance auto and bought a flashlight, oil, and some towels. Truck was a little low on oil, so I put in a quart, primed the carb, and it fired back up. Let it run for a bit and it was running very well, so I continued on my way.
Arrived at the parking lot the thrift store was in and heard some grinding noises. Thought it was a fluke, so I kept going through the parking lot.. Heard more noises so I pulled into a parking space and crawled underneath :wash:

Oil all over the transfer case, transmission and... the rear diff? Felt the drive shaft and it was dry, so oil was not dripping down it to get the diff wet. Grabbed the drive shaft and shook it and it was solid. Didn't want to risk it getting worse, so I bummed a ride home and here I am...

Anyone have an idea what is up? Did the driveshaft get out of whack and destroy the seals on the transfer case and diff at the same time?

I'll be towing it home on a trailer first thing in the morning but I thought I'd make a poll asking all you guys what you think it is before the analysis is in

Good luck guessin, may the best man win