What parts to fix this leaky rear axle?

It appears to be coming from the outside of the drum, there is nothing that I can see leaking from where the brake shoes sit. Thanks in advance for helping me figure out and resolve this leak! Also, any cost estimate if repairing it myself?

 

Since nobody replied yet.... You have a bad axle seal.

I've replaced many axle seals in my time, just never on a 2nd Gen Tacoma.

First and foremost - if you can't get this fixed right away, you need to check the fluid level in your rear differential. Depending on how much fluid you lost.... you will want to top off the fluid in the diff.

You might want to search or google to find some write-ups out there. I'm sure some exist.

 

I'm guessing from the looks of it that my brake pads are probably going to be ok once it is opened up. What parts do I need? I only have 90k so I am not going to replace the bearing. I can only figure I need the inner seal and the outer o-ring. I just replaced my rear diff fluid a few thousand miles ago so I am going to do what I can to avoid draining and wasting the fluid.

 

As long as the bearing wasn't noisy just the seal and o ring also replace your diff vent that may of been the cause of the seal going bad

 

I am running the extended diff breather but I will inspect it. Thanks

 

When you get in there, you'll have to inspect all that stuff and at least wipe everything clean (use brakeleeen type solvents).

You'll also want to check the bearing....if you've been low on fluid, and if the bearing has been running dry, it might have signs of wear. How much wear? It'll be a judgement call on your behalf to change it or not (the bearing).

Just make damn certain, you get that seal pressed in there perfectly (or just about perfect) or else you'll have another leak to deal with in no time.

 

The outer bearing is sealed from the rest of the axle and is packed with grease so low differential oil will not affect it. You may have caught the failed inner seal in time so your brake shoes are not contaminated.

 

just a thought .... if the vent is not working properly it might be the only thing wrong. When the Diff heats up the oil expands and if the vent is not working the pressure may build up to the point to cause the weaker seal to weep.

 

that is a tiny weep, could be clogged breather and fix it, fine

if oil is inside the drum (yank drums to be sure)

then it is typically ~$350 per side to replace inner/outer axle seals and bearings
(if you are gonna have axle yanked may as well replace bearings)