[kms0567]

I am trying to change Diff oil once it come close to 1500 miles and is this only for the manual trans? ACDelco 10-4034 Dexron LS 75W-90 Gear Oil
I was just about to purchase, and most of the descriptions were showing manual only. Mine is A10.
Thanks!

[Can'tHave2MuchHP]

The diffs are the same, without splitting hairs, so that fluid works for the rear diff of either A10/M6.

That's what I run in my A10 ZL1 for many trouble free miles.

If you don't have one already, you'll want a fluid pump as the fill for the diff is on top and you'll need something like this: https://www.amazon.com/Plews-55001-L.../dp/B000BQW5LK

Also, the rear diff already has a magnetic drain plug, but the engine oil pan does not. Look into a Dimple one: https://www.drainplugmagnets.com/gmchevybuick.php M12x1.75x21

[kms0567]

Originally Posted by Can'tHave2MuchHP

The diffs are the same, without splitting hairs, so that fluid works for the rear diff of either A10/M6.

That's what I run in my A10 ZL1 for many trouble free miles.

If you don't have one already, you'll want a fluid pump as the fill for the diff is on top and you'll need something like this: https://www.amazon.com/Plews-55001-L.../dp/B000BQW5LK

Also, the rear diff already has a magnetic drain plug, but the engine oil pan does not. Look into a Dimple one: https://www.drainplugmagnets.com/gmchevybuick.php M12x1.75x21

Thanks. Whats the torque number for the engine oil filter and diff fluid?

[Scottyz]

Does the diff need any additives?

[kms0567]

Originally Posted by Scottyz

Does the diff need any additives?

I believe the fluid it self has the additives.

[Can'tHave2MuchHP]

Originally Posted by kms0567

Thanks. Whats the torque number for the engine oil filter and diff fluid?

Not sure.

Originally Posted by Scottyz

Does the diff need any additives?

The correct OEM stuff, part number in the original post, has the additives necessary already in it. This is why it is imperative to use the OEM fluid and not some aftermarket stuff. Some people have tried to use aftermarket gear oil and get their own additive but why mess with something that works? Get the OEM stuff and sleep better at night.

[Jmueller]

Just did my rear diff oil change for the second time now. I just tightened the drain and fill bolts a reasonable amount. Don't go crazy, but make sure its tight.

[pauly1119]

I just did mine too right at 1500 miles as well. I was thinking I'm wasting my time but it for sure needed it. Also did my 3rd oil change too.

[SHE'Z 18]

Ironically, I was looking at picking up some of this oil for the differential today. That said, does anyone know where the best place and price to get it from? Thanks

[1hprush]

Originally Posted by SHE'Z 18

Ironically, I was looking at picking up some of the soil for the differential today. That said, does anyone know where the best place and price to get it from? Thanks

Did mine at 1K miles. You'll need 2 quarts, but won't need all of the second one.

https://www.amazon.com/Genuine-88862...words=88862624

[Genesis Chevrolet]

Originally Posted by SHE'Z 18

Does anyone know where the best place and price to get it from? Thanks

Us!

[SHE'Z 18]

Originally Posted by Genesis Chevrolet

Us!

Great. Amazon delivers 2 quarts to my house for $38. Is your dealership offering a better deal?

Thanks man

[equake]

Originally Posted by SHE'Z 18

Great. Amazon delivers 2 quarts to my house for $38. Is your dealership offering a better deal?

Thanks man

https://www.gmpartsdirect.com/oem-parts/gm-oil-88862624

Cheaper here

[SHE'Z 18]

Originally Posted by equake

https://www.gmpartsdirect.com/oem-parts/gm-oil-88862624

Cheaper here

Appreciate the link. However, once they add shipping, it's more expensive. Thanks for the quick reply though..