Nope just change the fluid, our tc doesn't have clutches its all gears and chain.

 

SAE Grade 8 or ISO Class 10.9

No, and that bull about "DON'T CHANGE THE FLUID!" is a giant steaming load of horse ****...

When you leave oil in there things get worse... Drain & Fill

And since I know it's coming, NP231 will run on basically any ATF you can get on the shelf today that isn't an obscure or unique application.

 

Oh I had already planned on buying whatever the store carried haha all ATF is the same I would think just like gear oil or any automotive oil has to pass tests. It's a NP242 by the way, doesn't change anything. I don't change my tranny fluid but do check it so if it's ever low than full I'll add more.

 

They didn't have Grade 8 with that pitch. Is it serious enough that I should buy dealer bolts instead of Grade 5?
No. Different additives can eat up important things in the wrong application. The TC doesn't have any of those metals that are affected by any common additives, so you can use whatever is cheap. An auto trans needs whatever fluid it is spec'd for

 

They were like $16 total for all 4 at the dealer when I had to have some that day.

They're a really weird metric thread pitch. See if you can find any Allen cap head bolts that are 5/16-24. A lot of times those are grade 8 and in fine thread available locally.

 

I think you're confsed here. ATF is not ATF is not ATF... there are many different kinds from many different companies for many different transmissions. Luckily the NP231 & NP242 were sold by New Process Gear certified with most of them. GM Dexron, Ford Mercon, and Chrysler ATF+x included. Any fluid meeting those specs will work for your transfer case.

As for your transmission, you are not doing it any favors by leaving oil in it that is sheared down and filthy. You'd change underwear if you pooped yourself, right? Get it out of there!

Well, given your reputation I'd suggest that your more likely to shear off sub-spec bolts in your way to get a coffee than most people are... Lol

Seriously it's a bad idea. Driveline and suspension are hardened for a reason.

Indeed, all the good stuff at Fastenal here is stupid Allen head. Works okay for my hubs (need to get the right bit though...) but I can see that being a real PITA for a drive shaft with limited space.

 

Whats the consensus on good rotors and performance brake pads i.e. EBC, Hawk, powerstop etc. Looking to do an overhaul on the GFs cherokees brakes.

Not looking to do a WJ brake swap or anything like that yet

 

True. I'll go ahead and get dealer bolts.

I guess I'm not understanding how exactly the load comes into play. I would think the shear strength of a Grade 5 would be adequate, considering the driveshaft has to accelerate. I wouldn't expect a sudden force strong enough to cause a problem.

But you win. I'll do it right

 

That's right. Trans fluid has a lot of properties, it needs to be refreshed. Leaving it in there past its service life, its no longer doing what it is supposed to be doing. Putting any old ATF in there, its not going to be doing what it is supposed to be doing. Dex VI only for the AW4.

Yeah there's nothing fancy at all about a transfer case, just chains and gears. They spec ATF because they assume you have it, and because its light 5W at base (has to be light for the slinger pump to work).

 

Okay Mabey this is where I'm welcome everywhere else people chew me out , okay I'm new to this forum and all I'm tryin to do is find out how to fix my rusted out floor an the cancer in the rear back fender, and what all fluids need changed and what parts I should replaced that are most likely worn out , all I need is some of your alls advice without being dick about it

 

Regarding fluid choice for the AW4:
https://www.cherokeeforum.com/f2/aw4...77/#post257755

Dex is the correct fluid. Chrysler used Dex in AW4s until the warranty ran out on all their AW4-equipped vehicles. At that point, they suddenly started using ATF+, which they own

 

Thank you in your opinion when is a jeep just too much to take care of anymore

 

Shock loading. People have no problem breaking axle shafts shafts, four tiny bolts smaller than your pinky fingers aren't safe just because they're behind some gears. You can swap an axle (or just drive without it if C-clip-less) but I wouldn't want to try drilling out a yoke on the trail lol

Hardly. Dexron VI is a good fluid but it's far from the "only" juice allowed in an AW4. They were designed under Dexron IIE, and sold with Dexron III/Mercon and JWS-3309. Castrol has a nice synthetic ATF that meets all of those requirements - almost like it's tailor-made for the AW4.

 

GM only licenses Dex VI. Anything sold under Dex III is not licensed and is sold as being "compatible" with the old formula, per whatever level of "compatible" the manufacturer wants it to be at the price point they can sell it. Some of that stuff is less than $1 quart. What's in it? Dunno but I know its not regulated by GM's license.

 

On the dash at about 7o'clock from fuel gauge is a tiny red light. What is it?