Am I the only unlucky person that all this happens to??

I have a leak around my slip yoke comming out of my transer case. Ford replaced a seal but I dont think it really ever fixed he problem. NOW, I guess I have a small leak on the front of my differential. I have 4" rancho, I put fabtechs spacer on, so my yoke isn't pulled out that far now. Had gears installed a few months ago. I can't figure out why I have a leak in my differential now. It seems like everything has a leak somewhere. Does this have to do with my gears or increase in temp? Also, should the oil level be right at the plug in the side of the differential? I check and mine is a hair below it. I need some advice incase this is gonna lead into something bigger that I cannot afford

 

So I figured out that it is probably my pinion seal. I checked the the breather tube and it was clear. Anyone have any experience changing a pinion seal? Will ford still do it under warranty even though I dont have stock gears anymore?

 

I think your warranty is void.