Guys I got my drive shaft off after finding a leaking rear pinion seal(so i thought). When I went to take the nut off it just turned.... No force needed. Could have turned it with my hand most likely. I took it to dyno shop 1.5 years ago. He noticed it was leaking then. But since I had the car I never saw a leak in the driveway. I put a ton of miles on the car in a year. Highway driving. So I never worried about it. Well I had that car up on ramps working on the front end for about 2 straight weeks. I noticed a tiny puddle starting to appear from the rear end. Jacked it up on stands and here I am. My question. It only looked like it was leaking from the threads. Everything else was bone dry. Do you think the seal is bad or should I just tighted the nut down and call it a day?