AAM 11.50 axle Q's

[wickedwagon767]

Anyone know anything about this axle?

I hear its beefy,but is it worth swapping into older vehicles?

It looks alot like the 14BFF. I hear the lowest ratio available is 4.88?

[JeepsAndGuns]

I dont know anything about them other than what I "hear" from other people. And what I hear is that the only real problem with the late model AAM axles are gear and locker availability.

[1977Waggy]

I have always wondered about ABS on later model axles. Is it just a matter of not hooking it up?

Charles

[wickedwagon767]

I have always wondered about ABS on later model axles. Is it just a matter of not hooking it up?

Charles

should be able to make a plate to cover the ABS port in the housing

[wickedwagon767]

I dont know anything about them other than what I "hear" from other people. And what I hear is that the only real problem with the late model AAM axles are gear and locker availability.


Thats what I hear. An 11.50" ring gear would be nice

[Stuka]

Its a strong axle. Pretty easy to find too. The Duramax equipped trucks come with them. Gas all get the 10.5" afaik.

Dodge also uses AAM axles front and rear. Basically equiv of a D60/D70, but for a much lower price than a D60 front. So long as you dont mind running drive flanges up front instead of hubs. And they are ball join instead of king pin. But I do not personally find that to be an issue.

[wickedwagon767]

Its a strong axle. Pretty easy to find too. The Duramax equipped trucks come with them. Gas all get the 10.5" afaik.


I'm gonna pass on the one I found. I'd rather have the locker/gearing options a tried and true 14BFF has

[Brad W.]

I have a pair of the dodge one-ton version of these if anyone is looking for them.

the 9.25" front axle has an ARB & electrac available. The rear 11.5" has only the AAM posi, but rumor has it ARB is working on an air locker. You are correct, 4.88 is the lowest ratio, unless there are new ones this year (doubt it). The axles also use a bolt-on flange at the driveshaft, much like a transfer case flange. The bolt-on u-joint yoke is a press-in joint style, and uses greasable caps w/ half-moon clips on the front and driveshaft clips on the rear. The front flange has splines for index & strength. The rear uses an index ring. the front is size 1344, NAPA has a conversion joint to 1330. the auto trucks are 1410 rear, the 6-spd are 1480 (!!!)... These are ball joint style knuckles, XRF makes excellent no-lash joints if you need new one. Good steering ends too. The unit-bearings can be replaced with the dyna-trac system OR the hubs from EMS off-road. They are the same as the older d60 dodge. The front does NOT have the CAD collar like most dodges, it has one-piece shafts. The brakes are HUGE and will not fit in less than 17" wheels. However, you can use 2002 dodge brake rotors/calipers/brackets, and use 16's. 4-wheel discs is nice.

there you go, everything you never wanted to know about these axles.

[LTS06]

I know I'm repeating some comments but here ya go:

AAM 11.5 is comparable if not stronger than a D-80. I have read that some folks running the pulling circuit with 3/4 and 1 ton dodges with the cummins prefer it over the D-80 as they have had fewer failures.

Everyone is correct in that it does not have a lot of aftermarket support.

It is a bigger and stronger axle vs the CHebbie 14 bolt that is common for putting in a jeep...but I am not sure if it is the same axle used in the duramax chebbies.

They are prone to howling.

If you want more info go to the "TDR Roundtable". It is the cummins dodge site and has LOTS of info from mild to wild applications on this axle.

THe AAM 9.5 front is comparable to a D-60 but has weaker balljoints and of course unit hubs (stockers are not the greatest).

The AAM 10.5 rear is comparable to a D-70 and/or chebbie 14 bolt and has similar issues as its bigger brother.

[Dirtball]

Good article on these axles:

http://www.4wheeloffroad.com/projectbuild/131_0711_ua_2007_jeep_wrangler_jk/index.html

[Brad W.]

yeah, I forgot to mention the power wagon lockers. Looks like they used those in the UA jeep as well.

not sure what they cost OEM, i'm sure it is not cheap. my flanges alone were $175 for the pair...