Diesel Place banner

1 - 20 of 23 Posts

·
Banned
Joined
·
6,541 Posts
Discussion Starter #1
Took a bunch of pics while installing the Mag-Hytec.
Dodge uses AAM axles but has them configured differently.
Both front and rear axle ring gear backlash/preload adjustments are accomplished with threaded sleeves. No shims required. The rear uses a geared "Torsen" type traction device Dodge calls "Anti-spin". It's the same type used in the H1 Hummer. It uses meshed gears that bind to transfer torque to the wheel without traction. No clutches or other parts. The front axle is a simple open differential. It has no axle disconnect or locking hubs. It's engaged at all times to the transfer case.















This is a miracle tool for cleaning gasket sufaces. Compliments of a friend of dmaxAllitech.


Old lube with 2500 miles on it.


Rear took six quarts with the new cover.



Front Axle..


<img onMouseOver="this.style.cursor='hand'" onMouseOut="this.style.cursor=''" alt='Click on image to open in new window' onClick="window.open('uploads/2F4_DSCN5333.jpg', 'Image', 'toolbar=0,location=0,status=0,menubar=0,scrollbars=1,
 

·
Registered
Joined
·
151 Posts
So Hoot,


How do you think this rearend compared to the Dana 80,I know you came from a chevy,but was wondering your thoughts on this matter.


I was kinda worried about losing my Dana 80 in my 2000 truck.


Great pics,by the way
Edited by: DGFoster
 

·
Registered
Joined
·
6,066 Posts
nice horns too
 

·
Banned
Joined
·
6,541 Posts
Discussion Starter #4
Thanks Nick... you heard them first hand!

DG,

I have no experience owning a truck with the Dana 80 but I have read alot about axles over the years. All in all the AAM (formally GM Corporate) big axles have consistantly rated in the same league as the Dana's by the 4x4 crowd.

You also have to consider the newer Dana axles are not the same as the old ones. Most are hybrids with some components that are bottleneck weakpoints.

Dana had a great run but they aren't necessarily THE axle to have. If they were so great why does everybody upgrade them?

Again, when you get into the big axles, there isn't a hands down winner.

One thing to note.... and I'm not saying this to bash GM. A recent Four Wheeler article compared axles and I believe they compared the Dodge 11.5 to the GM 11.5. Both AAM axles. GM necks down the axle tubes as they exit the center section which in turn lowers it's capacity. Dodge's version does not.

BTW, the Dodge axles have re-usable gaskets like the one on the Allison pan. Real nice feature.

I'm impressed with GM's aluminum housed front pumpkin. It's also an AAM unit and as Michael Tomac and others have demonstrated, it does take a lickin.Edited by: hoot
 

·
Registered
Joined
·
151 Posts
Thanks Hoot,good info.when you get use to something it is hard switch,at least for me,but it is good to know the AAM is a good choice also..
 

·
Registered
Joined
·
34 Posts
Mike, that is some nice work. I wish I had your skills. What fluid did you use in the axles when you filled them back up?
 

·
Banned
Joined
·
6,541 Posts
Discussion Starter #7
deezlwex said:
Mike, that is some nice work. I wish I had your skills. What fluid did you use in the axles when you filled them back up?
I use Red Line 75w90 full synthetic. It's a very easy job. The reusable stiff rubber gaskets make it so easy. The hardest part is refilling. Be glad to help you out just give me a holler.







 

·
Registered
Joined
·
64 Posts
Hoot


Thanks for the pictures.


Need to get one of those cameras but I am not sure I will be as proficient in it's use.


Not only are you a #1 Mechanic but you are also a top notch photographer.
 

·
Banned
Joined
·
6,541 Posts
Discussion Starter #9
Frank I use an older Nikon Coolpix 990. It's 3.34 mg. I use a 256 meg smart media card.

It has a great macro function that allows the really close close-ups.

I pull the card out of the camera and plug it in this little Jumpshot USB reader. It shows up on the PC as another drive. Just drag and drop the pics into a folder.

I take the shots in high resolution then edit them down to like 500 pixels wide and 75-200 DPI depending on how clear I need them to be. This gives me a file size around 50 KB per picture. They seem to load pretty decent on web pages. Any bigger and it really messes with everybody's downloading. Reading this Nick?


Sometimes I use Adobe Photshop to make a web album. I just load a source folder with the big pictures and designate a target folder. It automatically goes through and resizes each pic to a preset size, makes all the HTML code and thumbnails and puts it all in a nice uploadable package for the web.

As far as #1 mechanic... well I wouldn't quite go that far. There are many on this board that put me to shame. I'm a backyard mechanic.
 

·
Registered
Joined
·
687 Posts
Hoot,

You didn't use the OEM diff gasket with the Mag-Hytec did you?

Doesn't it come with an O-ring?

Or were you referring to the front axle gasket?

Gotta get a .wav file on the horns for sure!
 

·
Banned
Joined
·
6,541 Posts
Discussion Starter #11
Lawnboy said:
Hoot,

You didn't use the OEM diff gasket with the Mag-Hytec did you?

Doesn't it come with an O-ring?
Tom it's funny you asked. I went back and forth with a fellow on another site who said the GM 11.5 Mag-Hytec cover will leak on the Dodge axle even though the bolt pattern is the same. At the end of the day.... it had a drip.

Apparently the hole size on the bottom hole must be a little larger on the Dodge axle and the oring doesn't seal there properly.

So today I have to drain it an I'm gonna put the OEM reusable on.
 

·
Registered
Joined
·
138 Posts
Did you just want to change to full synthetic? What is the recommended intervals for changing a full synthetic rear end fluid? Doesn't the Mag-Hytec add appx. 2 quarts compared to OEM?
 

·
Banned
Joined
·
6,541 Posts
Discussion Starter #13
They all pretty much come from the factory with full synthetic. I just like to get the factory lube and metal pieces out pretty early.

The Mag adds about 3 quarts. I put six in mine total but some are saying eight. Dipstick reads full.
 

·
Registered
Joined
·
962 Posts
Hey Hoot, that article was comparing the GM 11.5 to the Dana 80 actually, stated they were pretty much the same axle as far as durability should be concerned, yes GM necks down the tubes .5 inches, but there were also some things they disliked about the D80 as well, what i don't understand is why Dodge withthe same 11.5 seems to be having some issues with gear whine and rear end problems. That alone is not enough to sway me away from dodge though.
 

·
Banned
Joined
·
6,541 Posts
Discussion Starter #15
Wickedsprint said:
what i don't understand is why Dodge withthe same 11.5 seems to be having some issues with gear whine and rear end problems. That alone is not enough to sway me away from dodge though.
You got to be kidding me. Some people have a rear end whine and that alone is enough but injector cost and life expectancy isn't an issue?

Didn't that article mention the Dodge AAM not being necked down?

I think you're a little touchy here Wicked. I know AAM has been having some quality problems. I know for a fact that the GM rears aren't exempt from them. Recently there was a rash of overtorqued pinions on the GM HD's. Would that sway you from a GM?


I would rather have a rear rebuilt than my motor opened up for injectors.

Isn't it strange that we have the same make axles, transfer case and injection systems?

But.... this is another case of internet information scare. If you didn't read the forums, you wouldn't be concerned, especially knowing that people with problems tend to post.Edited by: hoot
 

·
Registered
Joined
·
962 Posts
What is it with people NOT reading my stuff correctly lately, I said that alone is NOT enough to sway me away from dodge.., meaning, I would still buy a dodge, reading comprehension strikes again..LOL


-lighten up there Hoot. :) Edited by: Wickedsprint
 

·
Registered
Joined
·
286 Posts
Wickedsprint,


I thought maybe my reading comprehension was failing, I surely didn't take it the way Hoot interpreted it.


Hoot, chill! Don't take it so personal, I hope the vibration problem you have or had is not wearing on you. I have owned several Dodge Cummings and have no complaints, I went with the Duramax this time and so far I am very happy with it. Time will tell, however I have no reason to bash the others.
 

·
Banned
Joined
·
6,541 Posts
Discussion Starter #18
OOps ...

Sorry. No I don't take any of this personal. Wickedsprint, I just misread it.

Some good news on the vibration though. Since I did the exhaust and tires, it seems to be gone. I told MAC about it a week ago but am still waiting for a little more driving but it's wierd. It really seems to be gone.
 

·
Registered
Joined
·
962 Posts
I am glad to hear the vibrartion went away, mine has an annoying resonance between 70-74 that drives me and my passengers nuts..from the exhaust, it used to be at 75 exactly before they fixed the exhaust..now at 75 and higher it's kosher.
 

·
Registered
Joined
·
962 Posts
also to add, I believe they said the dodge did NOT neck down their axle tubes, which was one reason that the GMs version was not rated as high as it can be, meaning yall's in theory should be rated higher.
 
1 - 20 of 23 Posts
Top