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differential fluid change

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Old 10-12-2012, 06:08 PM
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Default differential fluid change

im going to change the front and rear diff fluids in my 95 ZJ. i have rear limited slip so i know i need the additive for that. ive heard people say that if you have limited slip you NEED to use synthetic gear oil in that diff. whats the truth behind this? i ask because synth. gear oil in a name brand is about 2x as much as conventional.
Old 10-12-2012, 06:37 PM
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You can use conventional 75-90 gear oil, you must use the friction modifier with limited slip diffs though.
Old 10-12-2012, 06:38 PM
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Originally Posted by Bustedback
You can use conventional 75-90 gear oil, you must use the friction modifier with limited slip diffs though.
thats the answer i was looking for, thank you!
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