Diff oil level measuring tool?

[shiv.nandak]

Is this the washer you are looking for ?

Are you supposed to replace that gasket? I was told to reuse it and have not had any issues in 6k miles.

 

[Greasemonkey]

I'm pretty sure an O-ring like that will last until the next oil change at 50,000 miles, and probably even another oil change at another 50,000 miles. On the other hand, an O-ring like that only costs a few cents, which is why many dealers always replace them to avoid warranty claims on their work. As long as there isn't a large puddle of oil under the differential, I wouldn't worry.

 

[Logsplitter]

I have 2. One for each diff, so I can’t spare one.
View attachment 7888693

. That’s exactly the tool that the technician used when checking my diff oil levels in South Africa

 

[Greasemonkey]

. That’s exactly the tool that the technician used when checking my diff oil levels in South Africa

If we get the manuals, we will know exactly why we can no longer use these tools.

 

[ECrider]

I have 2. One for each diff, so I can’t spare one.
View attachment 7888693

.308?

 

[Gxgn]

Has anyone found a source for this O ring here in the States? Thanks

 

[Lars]

Has anyone found a source for this O ring here in the States? Thanks

Have you considered your local auto parts store or Amazon if the dealer is out? You may have to bring the old one with you to cross-reference.

 

[etbandit]

When i did my diff fluid change, i assumed i could just fill until it dripped from the fill hole. But that is not the case!! I carefully measured the fluid and it was nowhere near the fill hole. I even added an extra 100-200ml and it was still no where near the fill hole. I didn’t want to add more for the fear of breaking something due to overfilling.

What was amount of oil that was drained and the amount of oil you added back.

We're the amounts drained and refilled the same for the front and rear diffs?

If the diffs were under filled from factory, that may explain why the oil was not at level of the fill hole.

 

[INEOS OG]

Id say this is a minimum not a maximum. I'd fill until it drips from fill hole like every other diff out there. Otherwise if I can squeeze my pinky in the hole and get a drip of 90w on it then it's also good.

Keep in mind this oil is splashing everywhere even at 5mph. So slight variations in oil level will not make a hill of beans difference up or down. Just changing caster from min to max will change how the tool reads.

Fill it till it drips and run with it.

Please do not do this. It is old school thinking (nothing wrong with that usually) but overfilling the diffs in the IG will result in over pressuring the cases unless you opt for old school vented housings which will cause them to leak.

 

[Dokatd]

Please do not do this. It is old school thinking (nothing wrong with that usually) but overfilling the diffs in the IG will result in over pressuring the cases unless you opt for old school vented housings which will cause them to leak.

I'd love to hear your explanation of this. Please site information if you could please.

 

[INEOS OG]

I'd love to hear your explanation of this.

Heat equals friction, friction causes pressure, pressure causes leaks. Your 1990 F250 has an open vent. Your 2024 Grenadier has a slintered vent that is not open and prone to over pressurization when overfilled and when overfilled causes leaks, it is a known issue.

Do a DIY vent or something like this if you choose to be old school. Oh, and don’t a such a millennial unless you know of what you speak.

ARB Differential Breather Kit for INEOS Grenadier by Agile Offroad » Agile Offroad

ARB Differential Breather Kit for INEOS Grenadier by Agile Offroad. Upgrade for malfunctioning factory one-way breather valve known to cause leaks.

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