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tell me why ...i just found out after 10yrs

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Old 03-23-2019, 05:30 PM
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Default tell me why ...i just found out after 10yrs
Tell me why when i was changing my cover on my rear differential which was rebuilt like 10yrs ago ..i decided to look at the Post unit and found out it was a lsd eaton 19559-1 ...ALl these years I've been thinking they replaced it with oem...g80... so now my question is since i found out it was a LSD unit.. IM going to need the additive correct? And what size Oil? do i stick to the 75w90?
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Old 03-24-2019, 07:12 AM
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What fluid have you been running for the last ten years?
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Old 03-24-2019, 09:28 AM
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**** ... i dont know... and i dont have the work order no morr...and the shop i took it to isnt there anymore 😭
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Old 03-24-2019, 11:48 AM
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Yes you will need the additive. And yes 75W-90 is fine.

Sorry, can't tell you "why".
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Old 03-24-2019, 07:09 PM
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Im running Lucas 75-90 in mine with no additive and it's fine.
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Old 03-24-2019, 07:10 PM
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I'm running Lucas 75-90 in mine with no additive and no issues.
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