I looked through the DIY and didn't see anything and I also searched and didn't find anything, so I am assuming that it is not that difficult. But could someone please explain to me the process of replacing the seal on the back of the transmission that the drive-shaft slides into. I believe that is the transmission extension housing seal

does it require any special tools? the autozone website thing says it does. what tool would that be?

My seal is leaking pretty bad, among other parts of my transmission but this is the worst one so I will start here. thanks guys.

 

There is not much to it, hardest part for me was finding the correct part. Goes something like this:

Blocks under the tire so truck cannot move, put in neutral w/ parking break off.
Mark the drive shaft so you can put it back exactly the way it came off.
Remove the drive shaft
Remove the seal, chisel/screwdriver with some soft blows work, or seal puller... be careful here because you can damage the transfer case.
Put new seal on, I pressed it in w/ a short piece of pvc pipe and a block of wood, large socket or similar will work as well.
Replace drive shaft.

 

I recommend jacking up rear end. Makes it easier to get driveshaft back in if you can rotate it.

 

i figured it was that easy, but things aren't always as they seem. and well I've come to learn that the hard way several times over. thanks guys maybe i can tackle this monday

 

Went to pick up the seal today and i thought i needed this one

Seal #1 (which is the one i bought)
http://www.oreillyauto.com/site/c/de...0071&ppt=C0338

but the parts guy thought it might be this one too

seal #2
http://www.oreillyauto.com/site/c/de...0071&ppt=C0338

so which one is right? obvisouly the best way to find out is just open it up and see, and that will happen tomorrow but i like to have the right parts and get it done quickly. thanks guys!

 

Second one I do believe.

On second thought.... do you need the rear trans seal, or do you need the t-case tailshaft seal? (where the driveshaft plugs in?)

 

HeyYou is the winner! haha that,s exactly what I just found out by looking at. I just got home and looked real hard at the part I bought and what was going on. i need the t-case tailshaft seal. where the drive-shaft plugs in. which would be this seal



http://www.oreillyauto.com/site/c/de...3685&ppt=C0316

they really need to make pictures on parts websites for these things, and dummies like me

anyway i found it, and it looks pretty easy. my transfer case is leaking a lot though from other places. around the case. how do you check the fluid in the t-case? is it connected to the transmission fluid?

do i need to take the case apart to reseal it or should i have a professional do it? it was rebuilt about 50k miles ago

 

Make sure it isn't leaking because it is cracked......

Should be a plug on the back side, about halfway up. Prolly 3/8ths square drive hole in it. Fill with ATF +4 to the bottom of the hole.

 

havent seen any cracks. nor have I thrashed on it hard enough really to crack it, at least not that I am aware of. ill try to hose it off real good tomorrow and see if notice anything.

 

that is the wrong seal. and apparently there is a correct seal in their system. dodge wants 33$ from the stealership and of course they dont have it in stock. and it probably wont be the correct seal either.i am not sure what to do