jgiachino

FOR IMMEDIATE RELEASE
Rear AAM 11.5" 30 Spline ARB Air Locker
for GM 2500/3500 2000-06 & Dodge Ram 2500/3500 2003-current
Seattle, August 25th/ ARB 4x4 Accessories/ To meet the voracious demands of the diesel dragsters, sled pullers and four-wheelers alike, ARB is proud to include this impressively strong new model in their Performance Air Locker Series. Designed for the 2000-06 GM 2500/3500 models and the 2003 and newer 2500/3500 Dodge Ram, this new 52 pound behemoth is the first of a new breed of heavy torque handling Air
Locking differentials.

ARB's patented 2-piece case design is manufactured from heavy cross sectioned nodular iron castings for virtually unbreakable strength and has been designed so that the side gears can be optionally upgraded to 35, 37 and 40 spline shafts. These higher splined side gears will be available in spring 2010.

As with all of ARB's Performance Lockers, the RD139 features ARB's patented Timed Gear Technology, which offers the highest locking strength while maintaining split-second unlocking ability. The steel reinforced, bonded seal has been designed to handle the most extreme climactic temperatures on earth complementing the competition bred strength of the locker.

The RD139 is a huge locker that can handle huge power. How much power? Our computer modeling suggests that this locker will handle upwards of 5 times more torque than the OE differential. We had to increase the torque load for two reasons - first, to handle the extreme load generated by the extra traction achieved when this differential is locked, and second, so that ARB could offer future swap-in axle upgrades to higher torque shafts.

We can honestly say that the RD139 will not be the weak link in your drive train.

The 30 spline, AAM 11.5" Air Locker is available through any ARB retailer by ordering ARB part number RD139. To find an ARB Dealer near you, visit the ARB Dealer Locator.

Application Description Part Number Retail Price
- 2003+ Dodge Ram 25/3500 Rear AAM 11.5", RD139 $1,063.30
- 2000-06 GM 2453500 30 Spline Air Locker



ARB Air Locker Features

- Puts the power to the ground at both wheels all at the push of a button.

- Provides 100% traction on demand without affecting on road drivability or driveline
wear.

- Vastly improved traction means less reliance on momentum, which reduces the
likelihood of vehicle damage or environmental impact.

- Easy, convenient operation allows the user to concentrate on the terrain without
leaving the comfort and safety of the driver's seat.

- Ultra durable and extremely strong - only the highest quality materials used in
construction.

- Incredibly simple yet effective design that employs minimal moving parts, thereby
ensuring maximum reliability.

- Thoroughly tested and proven design - trusted and used in over 100 countries around
the world.



About ARB
ARB Corporation Limited is Australia's largest and industry leading manufacturer and distributor of quality, 4WD vehicle accessories, with distribution in more than 100 countries worldwide.

The company manufactures and stocks the worlds most respected and sought after brands including ARB Air Locker locking differentials and bumpers; Old Man Emu (OME) customized suspension systems, IPF high performance lighting, and Safari snorkel systems. ARB's Seattle office is the North, South & Central American headquarters and importer of ARB 4x4 Accessories.

To view the full line of ARB product, please visit the official ARB website at www.arbusa.com


Media Inquiries
For more information about ARB or to obtain production quality images please contact: Steven Bisig, Marketing Assistant, ARB 4x4 Accessories 720 SW 34th Street, Renton, WA 98057 Tel: (425) 264-1391 | Fax: (425) 264-1392

TonyB

I just posted the same email!

jgiachino

figured someone else would too...know there's been interest for a long time, so wanted to get it out there....great minds think alike!

Igor

Would this mean taking the stock limited slip out and running open when not locked up?

Do they make it for the front diff? Locking up the front be nice on a daily driven truck that sometimes gets stuck

TonyB

Yes...Locked up, on demand. I think you have to stop to lock it, though.

IIRC, the front is a 9-1/4"; Yes they do!

Factory website: http://arbusa.com/

One source, that I know carries ARB: http://www.ringpinion.com/Default.aspx

Tony

wildcat

Thanks for the heads up!!

cbrahs

Bill. don't get any ideas. I don't need another excuse to come down there to work on your truck with you.

on the other hand, it would be fun but make sure it is in the winter down there. I DON"T LIKE THE HEAT!!! LOL

Squidward

Just stumbled across this thread while researching whether or not the ever got around to making a rear locker for us. Ill be getting one as soon as the budget allows! Just a few more payments left on the truck and I'm there!

wildbio

so if anyone is replacing their limited slip rear with the ARB let me know....I may be interested in buying the used limited slip rear...to help offset the $1000 price tag of the ARB!

RJ285

So sweet. A real $ investment though.

ShaneCTD600

Has anyone put an ARB in yet? How do you like it?

Sevir

1. Its about time, better then that $1600 milispool that is out there

2. Even though its cheaper, a grand for a locker i will stick with my limited slip until the price tag comes down a few notches

TonyB

Look at the ARB line...most are >$700 I don't think they will come down in price. There are not that many 4x4's using the 11.5" diff, vs. Jeeps or 4Runners.
They are pricey, but when you need the diff locked, ARB locks it! When I can get money saved, I will be installing one!

Tony

ShaneCTD600

How hard is the install? Do you have to cut shims?

BroncoAZ

I've got ARB lockers front and rear in my Bronco. Nothing else can compare to the traction of a spool when needed and the drivability of an open diff for daily driving.