discosoup

Does anyone know how far a axle shaft seal is supposed to be inserted in the axle shaft on a 97 4wd 4Runner?

mjwalfredo

I just pounded it in as far as it would go with a hammer and a seal driver. The outer surface of the seal was about even with the beginning of the horizontal surface of the axle housing. What, I mean by that is the surface where the inner diameter stop decreasing if that helps.... I leaned to use Permatex "Right Stuff" on the outside of the seal to make sure it doesn't leak as well.

OSU4Runner

Here is a good write up, should help you out.

http://4runners.org/writeups/rearseal/index.htm

mjwalfredo

Good info Guapo. I am not trying to steal the thread but as I was reading that writeup I started thinking. If an axle seal leaks because of a clogged breather, does the axle seal really need to be replaced? I am guessing the oil would just seep between the shaft and the inner part of the seal right? Maybe there is some actual movement/damage to the seal when this happens or maybe it is just a good idea to replace the seal when you get a leak since you will have almost everything apart anyways? Any thoughts?

OSU4Runner

I think it blows out the seal. Best just to replace the seal.

discosoup

Thanks for the help.

4low

and it buggers up your brake shoes too so I found out.

OSU4Runner

Yep...my rear shoes were soaked in oil.....had to replace them and machine the drums...PITA