Rear Differential lubricant?

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Tim Ulrich - 29 Jan 2007 02:37 GMT

What do most folks use for a lubricant in the rear differential? I'm
getting the rear end cleaned up and need to refill it tomorrow. The gear
wear pattern looks normal based on the figures in the shop manual so I'm
just going to clean it up and refill.

Thanks,
Tim

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Nate Nagel - 29 Jan 2007 02:45 GMT

> What do most folks use for a lubricant in the rear differential? I'm
> getting the rear end cleaned up and need to refill it tomorrow. The gear
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> Thanks,
> Tim

Ted H. recommended Redline Heavy Shockproof, but any good 80W90 or 85W90
gear lube should be acceptable. If it's a Twin Traction make sure you
buy something that specifically mentions limited slip diffs (Redline
does,) or pick up a tube of the limited slip additive.

nate

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Tim Ulrich - 29 Jan 2007 03:31 GMT

Thanks for the info Nate.

I failed to mention that this is for a 56H President Classic with the
automatic transmission. There is a big 44 on the casing. The shop manual
says it should be a Salisbury 44-3 semifloating hypoid.

Tim

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ErnieR - 29 Jan 2007 11:47 GMT

The Red Line eliminated all the TT clutch chatter I lived with for years
even though I had flushed and changed the lube ( using quality 80-90 stuff )
a few times in an effort to cure it.

> Thanks for the info Nate.
>
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