rear tcase bearing replacement (1 Viewer)

[Devil's Slide Doug]

I just got back from a trip featuring some muddy water crossings and now my rear tcase seal is leaking. I have searched and the consensus is that the seal is probably leaking because of the mud and gunk. I found the threads that explain how to change the seal and don't expect that to be a problem though removing the back half and internals of the case is more involved than (just removing a staked nut to remove the flange like) earlier models. I understand my snap ring pliers will get a workout. Since I am soon to be installing an ipor skid plate, how much work is it to replace the rear bearing also while things are still accessible? I have not found any write ups on replacing the actual rear output bearing. Is a press needed for this or will the right brass drifts and hammers and blocks of woods be enough?

 

[Buckru]

Shooting from memory here.

I think I remember the bearing coming out before the seal does. I didn't have a press of any kind when I did mine. Make sure to have a couple or three types of snap ring pliers on hand. I spent 40 minutes on one snap ring, minus the time spent cussing and kicking sh-t, before a trip to Sears for a different type of pliers. Had it out in 30 seconds on first try. It's not hard with the right tools.

Some fyi, my rear seal went from a similar situation as yours and after replacing bearing and seal, the front went a few weeks later which means dropping the case. All of it is easier to do on the bench. Getting the whole case back on sucks though.

Buck

 

[1FZj80]

The bearing from the rear output shaft falls right out, or at least mine did, and would be easy to replace. Definitely get several snap ring pilers. I pulled the TC, but this might be helpful anyways.

https://forum.ih8mud.com/80-series-tech/446639-removing-transfer-case-tc.html

 

[OGBeno]

I bought 3 Sears snap ring pliers (the ones with the tab and grooves on it--same one used for the front axle snap ring). I kept one stock, and then used a grinder and a file to grind down and taper as needed the other two pliers to fit the various different snap rings inside of the xfer case.

 

[Devil's Slide Doug]

So the bigger question is "while I am at it" do replace the front output seal/bearing and the input seal also. (Yes I realize that this means removing the entire tcase). Or do I just do the seal and no bearing and then decide to to do all the tcase seals when/if the rear seal blows out again? The lazy/cheapskate in me says just do the rear seal but it would be nice to stop that mess where the tcase connects to the tranny also.

 

[OGBeno]

I'd do it all now and get everything kosher for the long haul.

 

[Devil's Slide Doug]

I'd do it all now and get everything kosher for the long haul.

Of course, an unbiased opinion from the the other guy I buy my parts from .

 

[1FZj80]

To do the input seal properly you need to split the t-case. Because I am lazy, I replaced the input and output seals on the t-case and the output seal on the transmission (which was leaking). The t-case comes out pretty easily, so I figured I would just pull it again if the tc input seal leaks.

 

[OGBeno]

Of course, an unbiased opinion from the the other guy I buy my parts from .

Hey, just being honest. Why do the work twice and all of the labor involved when you can do it once and be done with it?

 

[Devil's Slide Doug]

Upon further inspection the tranny to tcase seals are bone dry as is the front output. Just the rear output is a gusher. I will do the rear seal and bearing only. I will wait until the front output leaks to do that. BTW, I have found links on replacing the rear and front output seals but nothing about replacing the tcase input seal or tranny output seal. I guess there are some holes in the tcase section of the faq. Thanks for your input beno. I will be giving Dan or you a call today.

 

[OGBeno]

Dan is out of the office and at Cruise Moab till Monday.

Feel free to give me a call.