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  #1  
Old September 5th, 2011, 12:57 AM
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Ken Loy
1994 Portofino Red ST
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Front Differential is full

Is this because of a worn seal at the swivel ball?
Any tips on fixing it?
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  #2  
Old September 5th, 2011, 07:37 AM
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Tom Rowe
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They are supposed to be full. At least full up to the fill plug.
But I'm thinking you must mean something else.
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  #3  
Old September 5th, 2011, 09:50 AM
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Ken Loy
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Yeah, they're full, above the fill plug. I see sludge around the left swivel, and that makes me think that the problem is there.
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  #4  
Old September 5th, 2011, 10:32 AM
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ken

are the swivels full also?

does the diff oil look normal?

have you been driving in water?
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  #5  
Old September 5th, 2011, 11:11 AM
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Ken Loy
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it doesn't appear as the the swivel has oil. the diff oil looks normal. i.e not milky or excessively dirty. and um.. no, haven't been driving it in water.
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  #6  
Old September 5th, 2011, 01:11 PM
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Tom Rowe
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Were you the last one to fill the diffs? Did you do it on an incline?
After it's been sitting overnight open the drain plug a little and see if water or gear lube comes out.
Are you running oil or grease in your swivels?
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Four wheel drive allows you to get stuck
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62 88 Regular
67 109 6cyl NADA x2
74 Lightweight - The Antichrist
95 DI 5-speed
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  #7  
Old September 5th, 2011, 01:15 PM
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Ken Loy
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I filled them last, and yes, it was flat. No water in the diff oil, it appears. oil in the swivels.
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  #8  
Old September 6th, 2011, 11:25 AM
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Ken, have you increased the lift on your truck since the last change? My diffs seem to be tilted back as a result of a 2 inch lift and it bothers me that i can't get more oil in without jacking one end or the other to compensate.
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  #9  
Old September 6th, 2011, 12:27 PM
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Jake K.
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You don't have to jack it up to fill the diffs once the rig is lifted...just fill through the vent hole once you've topped it up through the fill plug.
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  #10  
Old September 6th, 2011, 01:00 PM
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Charles Galpin
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Ken, nice to see you are giving her some TLC! I read this thread but things don't add up. Post a picture of this sludge you see if you want, otherwise I say just drain and fill both the diff and the swivel balls - i know your truck has been sitting long enough that it wouldn't hurt. Then check it in a few weeks parking back at the same spot/incline. Unless the oil looks odd, you should be fine and there is nothing to worry about.

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