Jeep Grand Cherokee WK Rear Differential Fluid Change

In this video I change out the rear differential fluid on my wifes 2005 Jeep Grand Cherokee WK 4.7L with some Mopar 75w140 Synthetic gear oil.

[@freethehamster6737]

No need really to let the sealant set up untorqued with the sealants used today. I’m a flat rate tech and I’d go broke if I did that. Never had a leaky one come back in 25 years. Also a rag over the gear set while scraping the diff is always a good idea.

[@almason253]

Thanks and well done! My 2000 JGC rear diff is leaking fluid. Time to replace the seal.

[@plunixx]

Anyone attempting this should make sure they add the limited slip additive required to the oil, if you have a Quadra Drive II. Quadra Trac II doesn't require it. Also, solid video buddy. Well done.

[@lstruggy]

I have a 07 Jeep Grand Cherokee Laredo 3.7 v6 do I need additive or no? And is it 1 qrt per doff axle?

[@Dragonesa41083]

@@lstruggy same question here with the same engine type like yours but an ‘08

[@maxrpm4433]

Good job

[@michaelmirabella5107]

Thanks for the video, it was a huge help. I was worried about it leaking , but it worked out perfectly. The only difference was that my 08 has electronic limited slip, so I had to put the additive in.

[@discoverymoi]

Man how it's the addictive thing? I have a 2009 Limited 4x4, was the name and where to find it?

[@michaelmirabella5107]

Moises Sequera sorry I just saw this reply. You can get the additive right from Jeep. Limited slip additive.

[@gelarojr]

What caused you to do this? I have a 2006 3.7L that has a howling/whining type noise that sounds like it is coming from the rear differential. The noise is only there when the accelerator is depressed (i.e., the engine is under stress). When you let up on the accelerator, within about a second the noise goes away. The fluid is low by a finger check and it seems to have some grit in it. Would changing it be a possible solution to the noise?

[@theprojecthomestead5623]

It was just for maintenance. I also have the same howling/whining noise when I accelerate or let off the gas. Changing the diff fluid didn't make any difference with the noise. I haven't looked into it yet, but Im assuming its either slop in the gears from having so many miles (235,000), or the rear driveshaft u-joints.

[@smitty3973racing]

gelarojr does your ebrake work? If not it could be the bads that fell off the shoe and are rubbing. Very common with these

[@tmchevyman5319]

gelarojr did you ever find out what was the reason for the noise ?

[@RcFlyer49]

@@theprojecthomestead5623 Pinion bearing

[@GreghouseVanBouten]

Same thing happened to me... I picked up a used rear driveshaft on eBay for sixty bucks, problem solved. Eight bolts, half-hour :)

[@PKendall317]

What size bolt is that? Not sure I have the right socket or not.

[@Objectional_Opinion]

THIS. I love how to videos, but a lot of them leave out what you need to have on hand before you start, or to even start in this case.

[@Mark-wp4lw]

Pretty good video but... 1. Cover the gears when scraping the gasket off 2. Apply a bead to the cover, not the differential itself and don't smooth it over with your finger 3. Be sure to remind folks to let it stiffen an appropriate amount of time before (A) you place the cover on the differential and then (B) before you snug down the bolts to 40lb ft 4. From the silver trim, that looks like the "Limited" version of the Grand Cherokee and if it is, it likely has Quadradrive II which means each gearbox needs 4oz of the Mopar slip additive

[@GreghouseVanBouten]

...this is why I read comments 👍 thanks!

[@Mark-wp4lw]

No worries man. Have learned a good bit myself from watching the do-it-yourself guys. Keep on keepin' on.

[@ri1906]

Is the additive necessary when having qd 2? I was going to take mine to a mechanical to change out the fluids but now after reading this and seeing that you need slip differential fluid, I feel like I should do it myself so I know that the additive has been added. Or if i take it to a mechanic is there a way to tell if the fluid has been added, i.e. does it change to a certain color or anything.?

[@Mark-wp4lw]

@@ri1906 I don't think there is a noticable color difference as the additive looks clear if I remember correctly. If you trust the shop, they'll likely know about it and do it right but if it's a chain, hard to say what they'd do. Many a guy on the Jeep forums have stated that they didn't believe in the additive bullshit but it started making noises shortly thereafter. For me, it's a pretty simple job and no real high-end tools are needed so now that the weather is decent, working under a car isn't nearly the chore that it is when it's 25 degrees outside. Good luck though - keep us updated!

[@kerstenvalentine9508]

@@Mark-wp4lw thanks for your comments about the additive.. question - do you just put the additive in first, 4oz, then fill the rest of way with oil? Also.. I've read the front diff also needs the additive but is the front LS?

[@framfull]

Is there no drainplug?

[@theprojecthomestead5623]

Nope. Gotta take off the diff cover to drain it.

[@MTJeep406]

The drain cover is that giant circle on there u pop it out with a flat head and pump it out and new fluid in.

[@user-maxim_79]

You didn't put the gasket material on correctly! Yikes!

[@jcleonardo538]

Do you recommend the mopar fluid

[@millerbd87]

So far, so good! I have heard many times though that when replacing any type of fluid (aside from maybe motor oil), its best to stick with the manufacturers brand.

[@jcleonardo538]

millerbd87 yeah I believe that thank you

[@newoldvideos989]

A scotchbrite pad would work much better and faster.. No chance of scratching the metal or gouging it..