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post #1 of (permalink) Old 02-28-2003, 04:35 PM Thread Starter
 
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fluid change question

I am draining and changing the fluid in my 78Cj, I have a model 20.
when removing the filler plug, oil came pouring out. Shouldn't it be level or just under??? also, approx how much fluid will be replaced, I know to the top of filler plug but about how much is that??
thanks
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post #2 of (permalink) Old 02-28-2003, 04:42 PM
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Re: fluid change question

i dont know why the fluid was so high but to check the level you just use your finger...just stick it in the hole [img]images/graemlins/blush.gif[/img]
post #3 of (permalink) Old 02-28-2003, 04:47 PM
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Re: fluid change question

Model 20 what, tcase, rearend? I have to agree with, jeepleO7 It should only be at the bottom of the fill hole. L8r,


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post #4 of (permalink) Old 02-28-2003, 04:49 PM Thread Starter
 
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Re: fluid change question

It is a T-case
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post #5 of (permalink) Old 02-28-2003, 05:11 PM
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Re: fluid change question

Did you open the hole in the bottom cover or the fill hole. What tranny do you have? Maybe the seal between the two has push oil from the tranny into the tcase. L8r,



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post #6 of (permalink) Old 02-28-2003, 05:22 PM
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Re: fluid change question

Make sure you don't have any water in there.
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post #7 of (permalink) Old 02-28-2003, 07:07 PM Thread Starter
 
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Re: fluid change question

My tranny was pretty empty! I think you hit it on the head, I didnt know the tranny and Tcase could share the fluid if a seal busted.
If this is the case, Im looking to have to drop the tcase and tranny, and it doesn't sound fun at all! Could there be any other possiblities? [img]images/graemlins/shocked.gif[/img]
Anyway thanks for the input. Jeeprugger~
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post #8 of (permalink) Old 02-28-2003, 08:08 PM
 
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Re: fluid change question

I had a T-150/ Dana 20 that liked to "share" the gear oil [img]images/graemlins/mad.gif[/img]

If this is what is happening to you, you will need a new seal for the output shaft of the transmission, and a new gasket between the t-case and tranny (and some 7/16" threaded rod for lining the tranny back up to the bellhousing)

this is not a hard job, should only take half a day. and its a good time to clean all of that gunk out of the skidplate and replace the transmission mount!

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post #9 of (permalink) Old 02-28-2003, 08:56 PM
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Re: fluid change question

It might be a good idea to check the clutch if you got it down this far. Wouldn't want to redo it 500 miles down the road. Personal experience, I had my first pick up a `62 F100 that I replaced the seal and then the clutch went out. [img]images/graemlins/cussing.gif[/img] L8r,



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post #10 of (permalink) Old 02-28-2003, 09:57 PM
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Re: fluid change question

I had a T-150/dana 20 combo that would slowly pump the oil from the tranfercase uphill into the tranny. Dont ask me how but it was a fact. I would occasionally let oil drain from the tranny fill plug and have to add to the x-fer. [img]images/graemlins/confused.gif[/img]
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