Sounds good...I did put 75/140 in my diffs. I put synthetic in though, so it's a little thinner than the actual weight anyway.

I also feel like mine is running "smoother"!!!

 

Good stories (dipstick, hahaha) Here's my quick front diff story. After I bought my truck this past summer, I did as you and changed all the gear fluids. Starting from the back and working my way forward. Well, I got to the front diff and started to remove the filler plug. It was quite grungy and I couldn't tell that it was a hex bolt. I 'assumed' it was like the other plug bolts and a 17/19 whatever mm standard bolt that the previous owner had rounded off. I saw the drain was a hex but thought it was just a replacement so I dremmeled a slot into the fill plug to use a large screwdriver to break it loose. Felt like a complete idiot when I got it out and cleaned it off........