Hello all! I've been scratching my head due to the lack of instructional videos online. My rear diff is leaking gear oil out the driver's side of the diff where the axel goes into it. I'm guessing a bad seal? How difficult would this be to replace? Do you know if I would only need to purchase just the seal or would I need anything in addition? I've replaced a pinion seal on an older Dodge Dakota, but I'm thinking the axle seal will be much more difficult, as I'm sure I'll need to drop the diff. Also, WHERE is this differential breather cap located!? I've looked (and felt) all over and I just can't seem to find anything. It's really tight up in there so I'm not sure if I'm just missing it to see if it's corroded and locked up where it's not venting properly. Any suggestions/help would be great. Sure don't feel like spending $500+ at the shop for them to replace this if it's something I could likely do myself in my garage. Thanks!