How Do I Check Diff and Trans Fluids

Diffs, axles, lockers, transmissions, portals, that kind of thing.
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Doug308
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How Do I Check Diff and Trans Fluids

Post by Doug308 » Thu Aug 02, 2018 3:17 pm

I just ordered my service manual but want to stay on top of things.

How do I check diff and trans fluid?
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Twin Pinzies
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Re: How Do I Check Diff and Trans Fluids

Post by Twin Pinzies » Thu Aug 02, 2018 9:43 pm

Checking the F&R differentials, transfer case, and transmission fluids requires removing the "fill plugs" and the "level plugs."
The level plugs are the middle ones... There are three plugs per gearbox... The top one is the "add fluid" plug, the middle one is the "level plug", and the bottom one is the "drain plug."
Remove the "fill plugs" and the "level plugs", then top off the fill plug until fluid starts to come out of the "level plug." That means it's full.

*Use only GL-4 fluid in the transmission ans transfer cases. And use either GL-4 or GL-5 in the differentials.
I drain and replace mine once a year.

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VinceAtReal4x4s
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Re: How Do I Check Diff and Trans Fluids

Post by VinceAtReal4x4s » Thu Aug 02, 2018 11:38 pm

And just to point out, some of the high-end synthetic gear oils like Royal Purple's GL-5 gear oils are actually GL-4 safe as well.
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edzz
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Re: How Do I Check Diff and Trans Fluids

Post by edzz » Fri Aug 03, 2018 1:12 am

Remember never remove a drain plug without first insuring that you can remove the corresponding fill plug. :lol:
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Doug308
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Re: How Do I Check Diff and Trans Fluids

Post by Doug308 » Fri Aug 03, 2018 4:12 pm

Thanks guys
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scoot
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Re: How Do I Check Diff and Trans Fluids

Post by scoot » Sun Aug 26, 2018 4:16 pm

I am actually just getting ready to do mine also. I bought a gallon of the Redline. Is that enough to do all the tranny fluids?
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TechMOGogy
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Re: How Do I Check Diff and Trans Fluids

Post by TechMOGogy » Sun Aug 26, 2018 4:35 pm

Assume you have manuals - if not it should be 1st purchase
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