Hello, I’m back again with another potential problem 😩 (which feels like it is bound to happen with these old trucks unfortunately)

Vehicle details:

2002 Mazda B4000 6 Cylinder, 4.0L, 4x4

Yesterday I noticed a leak coming from around the front differential on the passenger side towards the passenger wheel. Looking like it is coming from the Axel seal, or Pinion Seal? It has been a very slow leak and grimy/dirty. I’m guessing it’s differential fluid and hopefully not oil (which I have been checking everyday and have not had my oil levels go down). I have had this truck for almost month and this is the first time I noticed the leak... I usually park on flat ground at my house, but my truck has been parked on an incline the last two days, if that would make any difference.

I’m wondering if the issue is an Axel Seal Leak which is causing this? I’m talking it in to a trusted shop Thursday to get it looked at. Hopefully it’s just the Seal and differential fluid and not an oil leak.

Im just trying to tackle one thing at a time with this truck and looking to get at least 3-4 years out of it.

thanks in advance!