Hello, I noticed I have a fluid leaking on one of my front wheels, and am wondering if this is brake fluid or maybe front differential fluid? Photos attached.

 

That looks like brake fluid, just going from stain-patterns on tire. Fluid looks thinner than axle fluid. Just smell it, the two fluids smell totally different. Plus, looks like your rotor is wet also.

But, it looks like your swivel ball housing is leaking also...so both areas need to be address.

 

Off topic...but the amount of wheel-weights here cracks me up. Another reason l dislike BF Goodrich tires. You'd think...a company that's been making tires as long as they have...they could make a tire that didn't need two thousand pounds of wheel weights to get them to balance out...lol.

Also, you may want to invested in some steering components...those tie rod ends and draglink look mighty old.

 

Swivel ball grease