After months of dealing with oil being sprayed under my truck and onto the driveway, I'm finally getting around to replacing the seal where the rear driveshaft meets the t-case.

Do I have to drain the t-case prior to removing the driveshaft? Or will simply jacking the rear end up push the t-case oil forward enough to prevent it from spilling out?

 

You can probably get away with draining just a little bit of oil out to do the rear output seal, but why not just use this opportunity to freshen up the oil completely?

 

If you angle the truck nose-down, you will not need to drain it at all.

 

i would just change the oil while your down there it only takes a couple quarts. just drain it. change the seal. put the drain plug in and fill the transfercase till it pours out the fill plug hole.

 

I just replaced the fluid about 2000 miles ago, so there is no need to change it again.

I guess I could drain and then refill with the same oil, but that would entail cleaning out my drain pan...and I'm lazy

 

drain it into a clean container through some cheesecloth. reinstall once the seal is replaced. no need to try and clean a non existent tcase drain pan.

lee

 

x2

Drain it, and reuse. I did the same thing when I did the front output seal on the transfercase.

just need a 24mm socket to drain and fill the fluid.

 

By drain pan, I was referring to the container I'd be draining the old fluid into. Maybe I will clean it...although I'm not looking forward to it

 

Just grab a handfull of paper towels (I keep rolls of those blue shop towels around) and wipe it clean... No biggie

I drained mine into empty gear lube bottles

 

Well I think I got the wrong part from the dealer. My first suspicion came from the price. The part I got cost me $27.58, while other people seem to be saying it should cost around $10. The part I got is called Seal Type D, however, I believe the one I am looking for is called Seal Type T. Can anyone verify this?

Here are some pics of the part I got. I know it's kinda hard to see the actual seal, but I didn't want to open it yet, since I'll probably have to return it.

 

http://www.toyodiy.com/parts/

You check part number from here. Enter your vin.

Also, I find its always better to give the dealer your vin for parts rather than just year, model, motor, etc.

 

As far as draining the fluid, I'm not sure why anyone would recommend you do this, unless you simply want to change the fluid. You will have a bit of fluid run out from where you pull the old seal out (have a little pan ready), maybe about 6 oz max. But the seal is higher on the T-case than the actual fill plug.