07 Tacoma rear brake fluid leak

My brake fluid is leaking bad from the rear driver side. What part would I need to replace?

 

Could be your wheel cylinder, gota pull the tire and drum off.

 

If you haven’t manually adjusted the self adjusters, probably your wheel cylinders over extended and popped out. At minimum you’re going to need to replace the contaminated shoes, and need several cans of brake cleaner. Obviously don’t drive it like that. Pull the wheels and drums off, take a look. You might need to replace the wheel cylinders. Try to not let the master cylinder reservoir go empty, so you won’t have to deal with the air in the abs problem.

 

Once I pull the drum off, how can I tell if it's the cylinder? Will it be obvious?

 

Yes, likely the wheel cylinder.

 

Yes you will be able to tell pretty quick.

 

That looks more like gear oil. Your wheel bearing is probably toast as well as the wheel seal. If it is brake fluid, your wheel cylinder is probably bad, that’s an easy fix.

 

Tend to agree, but should be obvious from the smell test

 

If it stinks. It’s gear oil.
If it doesn’t stink, it’s brake fluid.

 

I agree it looks like gear oil. Appears too thick to be brake fluid.

 

also the fact that it’s caked up on the axle housing. The brake fluid wouldn’t work it’s way over there I don’t believe.