How to drain NV5600?

[Blkdawdg]

What's the procedure for draining the 6-speed? TIA

 

[Riflesmith]

Simply remove one or two of the lowest PTO cover bolts. These bolts penetrate the case and will drain the lube when removed.

While you are at it, you should consider removing one PTO cover and cleaning the bottom of the case with a lint free cloth.



On my next NV5600 lube change, I am going to add a set of fast coolers to the PTO covers. These transmissions seem to run hot and are hard on lubricant.

 

[Dane]

Don't forget the 17mm allen wrench to remove the fill hole plug...

 

[Blkdawdg]

How much?

Can you guys tell me how much fluid it takes to fill?

 

[Riflesmith]

My memory isn't what it used to be, but I think it takes 5 quarts.

Amsoil 5W-30 Heavy Duty Diesel Oil is in mine.

 

[Diesel Gunner]

I have the newest Fast Coolers and I highly reccommend them. Verlyn was very helpful on the phone every time that I called him and the product is well made and designed. Not only are the covers now made of Lexan so that one can make a visual check for lube level and contamination, there are also magnetic dipsticks.



When ever one changes the transmission lube I would suggest removing at least one PTO cover. There is a small flat magnet that is laying in the bottom of the trans that should be removed and cleaned as it tends to be covered with a somewhat dark velvety fuzz. Replace it and make sure that the trans is as empty and dry as possible. This will aid in getting the coolers on without leaks.



If I had not botched when I installed mine I could give you temperatures in different conditions. But, I installed the coller upside down and my temp sender is sensing air temp in the trans insted of fluid temp. The only way to correct is to remove and turn it over. I am working on getting that motivated. The magnetic dip sticks were sent about two weeks after the coolers and I figured that the gears would sling the lube up on the sender just like the rear diff. I was wrong!



Good product, great service. I would do business with Verlyn Fast again.

 

[Diesel Gunner]

By the way, the NV 5600 capacity when stock is 4. 5 quarts. After the Fast Coolers were installed I was able to put just a little over 6 quarts in the unit.



I was getting so carried away with my little dissertation that I forgot the question

 

[Lordsman]

lube oil

I just boughjt some 6 speed oil from the dealer, it's 80w manual trans fluid that is DARK BROWN. They said it's the correct fluid, on the bottle it says " Check your Jeep Eagle service manual for vehicle application", part # 4549636. It's 80w manual trans fluid. I had them double check the part number, and they this part # replaces the old one in my manual.

Question: What color is the factory fluid you guys are draining?

Also, if this dealer fluid is correct(80w), and many are switching to 5w-30, isn't that a HUGE viscosity change?

 

[Texas Diesel]

My OEM MTX fluid was honey color, almost clear, and as thick as ATF.

 

[Ram4Sam]

Part number#??

Lordsman, my gearbox has a sticker that says to use part #04874464, which is what the parts guy aslo looked up for me. I got some to put on my Fastcoolers and this stuff is pretty thin, like ATF, nothing at all like gear oil.



Sam

 

[wyosteve]

Changed mine yesterday at 70k for first time. Fluid still looked good, but plenty of gray gunk accumulated on the magnet. The part no. Ram4Sam listed is the correct no. if you get the oil from the stealer. I ended up getting mine there at the outrageous price of $10. 50 a quart because it's almost impossible to find Texaco 1874. Whole job was easy enough just time consuming especially after re-installing the PTO cover and waiting for the RTV gasket to set up. Heading to Denver with the gooseneck this morning. Hope I did everything correctly. BTW, it used 4 qts. to refill.

 

[1tuffram]

I'm not sure if this applies to the 6 speed, but since GMC and Chrysler use the same 5sp some folks in the past found it cheaper to buy the factory fill (for the 5sp) at their local GMS/Chevy dealer rather than DC. Go Figure

 

[Mad Max]

Texaco 1874 is a 5gal bucket of MTX fluid. Your best bet is an oil/lube wholesaler/distributor in your area that handles Chevron/Texaco/Motiva/Equilon Products.



I picked up a 5 gal bucket a while back for less that $50.



Add one Eaton/Fuller PTO filter from Geno's Garage and change fluid when it starts shifting crummy or I start to hear more noise than usual. When the bucket runs dry I may try Redline MTL out in it; I used to run it in my stock class racer and other than needing to change it yearly, I was please with its performance on the track and on the street.



MaX