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post #1 of 10 (permalink) Old 04-13-2013, 02:11 PM Thread Starter
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how much oil

How much oil needs to go back into the differential after drain?? I have 2 bottles.
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post #2 of 10 (permalink) Old 04-13-2013, 04:08 PM
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That will do it. It calls for 1.9 I think.

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post #3 of 10 (permalink) Old 04-13-2013, 06:23 PM Thread Starter
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Yep it was enough. thanks
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post #4 of 10 (permalink) Old 06-06-2013, 05:59 PM
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Just curious; what kind of oil do you recomend?
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post #5 of 10 (permalink) Old 06-06-2013, 08:37 PM
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depends on what you have.

i'm sort of partial to castrol synthetic.

royal purple is always good, but its expensive as all hell.

and then you have to think about whats inside that diff, the traclok units need an additive for the clutches.

and if you have the old clutches, and you don't want them to chatter, non syn oil + additive. some say syn is fine, I'm running it now without problems. but i upgraded the clutches to the carbon fiber.

in the end though, gear oil is gear oil. most just put in the cheep stuff and forget about it. and with a standard open spider gear diff, thats completely fine, the oil usually outlasts the car. ive seen diffs with stock oil at 100k+ that's still light tan and viscous. I'd still change it regularly though.

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post #6 of 10 (permalink) Old 06-06-2013, 09:20 PM
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Thanks for the info. The tag on my diff is pretty rusted, can't really make anything out on it. Is there another way to tell what's in the diff? With out opening it up at least...
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post #7 of 10 (permalink) Old 06-06-2013, 10:11 PM
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You have 8.8 inch 3.27 gears for sure, its a 1997. Look under the axle code in the door jam, or if you want to have more fun. take off traction control and roast them and peel out when your done. If the black marks are even you have TL, if it fades side to side you have open differential.

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post #8 of 10 (permalink) Old 06-07-2013, 07:15 AM
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Not a surefire way to tell, unfortunately. Every time my Cougar (3.8 with a 7.5" 3.27 open) has broken free I've seen it leave two even marks. If you're stuck in snow or mud, however, it's a lot easier to see if you have a "one wheel peel".

The best way to check if you can't decipher the door jamb code is to jack up the rear end and try and turn one of the rear wheels with the car in park. If you can turn the wheel and the other side turns the opposite direction, it's an open.

The axle code for a 3.27 open is 5. If it's a trac-lok it'll be an E.

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post #9 of 10 (permalink) Old 06-07-2013, 07:46 AM
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Also, if it took 1.9 quarts, it's probably open. Traklok is more like 1.7 quarts from bone dry.

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post #10 of 10 (permalink) Old 06-10-2013, 09:28 AM
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Quote:
Originally Posted by theterminator93 View Post
The best way to check if you can't decipher the door jamb code is to jack up the rear end and try and turn one of the rear wheels with the car in park. If you can turn the wheel and the other side turns the opposite direction, it's an open.
Totally forgot about this trick, mine is open.
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