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How to get mutilated Seal out of Tcase

badmix

badmix

1/2 ton status
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Hello all.

Ive got an '84 full size blazer 4x4. It has NP208 Tcase. I had a pretty bad leak coming from the output shaft. So, I decided to tackle this project and replace the seal. Everything went well til it came time to get the old seal out. This thing has seen better days. Ive mutiliated it beyond belief.

How do I get the rest of the remnants of the seal out so I can clean up the housing to put the new one in?

Any tips or tricks? Ive thought about jus melting it with propane, but I figured id ask the BTDTs before doing stupid things. lol. A seal puller wouldnt have worked in the first place IMO.
Thanks and any help is appreciated.
 
badmix said:
Hello all.

Ive got an '84 full size blazer 4x4. It has NP208 Tcase. I had a pretty bad leak coming from the output shaft. So, I decided to tackle this project and replace the seal. Everything went well til it came time to get the old seal out. This thing has seen better days. Ive mutiliated it beyond belief.

How do I get the rest of the remnants of the seal out so I can clean up the housing to put the new one in?

Any tips or tricks? Ive thought about jus melting it with propane, but I figured id ask the BTDTs before doing stupid things. lol. A seal puller wouldnt have worked in the first place IMO.
Thanks and any help is appreciated.
Click to expand...

why not?


use a screwdriver and hammer, ctch the steel part of the seal and just bend it in, keep going until you can pop it out
 
A half case of beer, a screwdriver, and a BFH. Mine took me the better part of two hours and a massive stain on the driveway because I forgot that when you pull the yoke the case drains. :crazy:
 
Where here is where im at. I jus wanna make sure im not goin to tear up anything

AASEAL.jpg
 
Also , behind this there is a GOLD ring that looks like its thin metal. Ive goudged it pretty bad, what does this gold part do?
 
208 Tailhousing

I had to replace the seal and bushing on my 208 also. Its been a year so its IIRC but that gold is the bushing. I couldn't see damage from your pic but the only thing soft enough to beat-up behind the seal, is the bush. So carve another notch for bangin the bush; you now need to pull the cast alu. "extension". I'm looking at my parts book Xploded diagram to refresh the RAM/brain. If you want to switch to PM, now is the time while I see about scanning the parts book page and figure how to attach.
 
diagram

Yea so anytime you want to a private message, just click on the member handle, upper left, like ROADNOTCA. I scanned the diagram, this is from the factory parts dept. book for '85. Kooollll
 
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diagram

I think what you're goanna haf to do is pull #9 to replace #11 & #12. To remove the bush, use a press or threaded rod & nuts/washers, but don't bang it out. Squeeze in the new bush and seal as well.
 
Okay thanks...what does that gold thin bushing do exactly , doenst look like anything rides on it. the seal is up beyond that point.
 
badmix said:
Okay thanks...what does that gold thin bushing do exactly , doenst look like anything rides on it. the seal is up beyond that point.
Click to expand...
Tell ya what, tomorrow get a new seal, needed it, so you can see how its made and fits the casting; maybe you haven't gotten down to the bush yet. I thought the seal metal shell has a lip flared out radially, covering the very end of the casting, its hard to tell from the pic, but the metal I see near field looks dif than the casting in far field. You'll see with the new seal but I think you can drive in the lip to collapse the seal so it can be hooked out.
 
I appreciate all your help with this.

I couldnt get your pic or PMs to work, im not a member or something. I looked at my link of the diag. and kinda clueless about it.
 
badmix said:
I appreciate all your help with this.

I couldnt get your pic or PMs to work, im not a member or something. I looked at my link of the diag. and kinda clueless about it.
Click to expand...
Well, like I said, get the new seal, and get a membership; no sense in owning a CK5 without being a member.
 
that in the pic is part of the seal, i had the same problem when i changed it in my truck. it takes a little bit of digging, but i got it with a screw driver.

from the pic, it looks like the front output shaft, if it is, there is no bushing there, its a bearing. you really have to screw up to damage the housing and teh bearing.
 
big83chevy4x4 said:
that in the pic is part of the seal, i had the same problem when i changed it in my truck. it takes a little bit of digging, but i got it with a screw driver.

from the pic, it looks like the front output shaft, if it is, there is no bushing there, its a bearing. you really have to screw up to damage the housing and teh bearing.
Click to expand...
I think you're right, I was thinking it was the rear output. Hang-on, goin to get the rest of the diagram.
 
big83chevy4x4 said:
that in the pic is part of the seal, i had the same problem when i changed it in my truck. it takes a little bit of digging, but i got it with a screw driver.

from the pic, it looks like the front output shaft, if it is, there is no bushing there, its a bearing. you really have to screw up to damage the housing and teh bearing.
Click to expand...
#65?
 
Drill it, and screw in metal screws. Now you have something to pull on. I have done this on numerous seals and it works fine, just don't drill into the casing.
 
welp its still leaking. I had new seal put in and today its leaking a lil bit out of same spot. any suggestions as to what to do now?
 
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