Lost torque to wheels after weird leak/brakes not lining up 04 executive

[jimbeauxf]

Hey I'm trying to figure out what happened to my rear end, I'm sure someone knows what's going on. I was in the middle of moving, going like 10 mph around a corner real easy and without a bang or any noise the rpms just started floating and I lost all power to the rear wheels. Im currently at 116k miles and noticed the recall on the axles at 110 I believe? But at about 115k I had a sudden whine and grind, my traction control and abs light came on at the same time, and I thought it was my rear end or something and I was then pleased to see I had a brake pad that looked like it just needed replacing, but it was leaking fluid? Thought it was brake fluid, and the caliper was pushed out too far orr something cause once I got it on there I realized it was offset ever so slightly on the caliper and it didn't seem like it fit quite right but it didn't seem to leak. It squeaked for like a few miles and then i thought everything was fine for a week or so of daily driving until whatever happened. I've heard of people needing bearings or axles, differentials, so I'm curious if my description would help narrow that down to anyone. I shouldn't need an entire rear end assembly should I? Thanks guys