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Open Roads Forum  >  Truck Campers

 > Locking Rear Differential

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Mission Viejo CA

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Posted: 07/17/12 04:24pm Link  |  Print  |  Notify Moderator

I am looking at the F-350 & Chevy 3500, both gassers, DRW, extended cab to carry my TC.

The Ford website says that you loose the electronic locking diff when you go to a DRW set-up, falls to the limited slip.

I can't seem to find out if the Chevy keeps the locking rear diff in the DRW configuration.

Anybody know?

Also, unless I am mistaken, I believe there is no way to install any kind of front locker on the Chevy as it has a IFS opposed to a solid axle......correct?


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Bentonville, AR

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Posted: 07/17/12 04:39pm Link  |  Print  |  Notify Moderator

I'm not sure on the new ones but my 2002 3500 dually dmax/allison had the Eaton G80 locking rear axle. Probably one of the best from the factory locking rears. Not limited slip. My new truck has the electronic locking rear F350 SRW but have not really had a need to use it yet.

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Posted: 07/17/12 04:47pm Link  |  Print  |  Notify Moderator

Randy's Ring and Pinion has an air locker:


You can also go with the Eaton E-Locker part #19622-010


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Bothell Wa.

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Posted: 07/17/12 05:02pm Link  |  Print  |  Notify Moderator

So you still get LSD just not electronic? Doesn't sound like an issue to me.

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Mile High

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Posted: 07/17/12 05:13pm Link  |  Print  |  Notify Moderator

I believe the famous Mr. Whazoo has a front Eaton E Locker on his GMC 2500. You could pm him for a review. The factory GM Eaton G80 rear locker is an excellent and I think by far the best of the big three rear axles.

Yes the G80 is available/standard on the dually. It was standard on the LTZ package on my 2500. Great truck by the way, you will/would love it.

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Arizona desert

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Posted: 07/17/12 05:34pm Link  |  Print  |  Notify Moderator

If you want an F350 dually with a locker, order the truck with the standard open rear differential, then have an aftermarket locker installed in it, either a Detroit Locker, or a Powertrax Lock-Right.

The GM 3500 dually does have the G80 locker available as a factory option, as far as I know.

I don't think I'd have a need for a locker in the front axle of a dually. The truck is too big to do any rock crawling or other really extreme off roading. A limited slip would be nice though. I'd look at the True Trac non-clutch limited slip for the front axle.

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17 Oaks Ranch

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Posted: 07/17/12 05:35pm Link  |  Print  |  Notify Moderator

I am a fan of ARB and Detroit. In my world we live and die by front/rear lockers and my money its ARB and I have seen a LOT of broken lockers. ARB plays RUFF! I have run them for many years f/r.

I also like the ability to turn on/turn off at the dash my lockers.

Dana 80 ARB

ARB has over 100 configs and supply a world wide market, those Aussies know their lockers.

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Tucson, az, usa

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Posted: 07/17/12 05:39pm Link  |  Print  |  Notify Moderator

You are mistaken about the front locker on a GM truck.

Front locker install on 2006 GMC 2500HD link



Swoope, VA

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Posted: 07/17/12 08:02pm Link  |  Print  |  Notify Moderator

My '05 Dually has the G80 rear locker. It works great. There are several models of limited slip and locker available for the GM IFS axle. I don't think I'd want a locker in the front. Maybe an air or electric locker.


Tacoma, WA

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Posted: 07/17/12 08:56pm Link  |  Print  |  Notify Moderator

17oaks wrote:

I am a fan of ARB... In my world we live and die by front/rear lockers and my money its ARB and I have seen a LOT of broken lockers. ARB plays RUFF! I have run them for many years f/r.


I Jeep. Hard core, axle snapping, spring twisting offroad jeeping. I've had Detroit, LockRight, Eaton E Locker, and ARB.

Detroit and LockRight - I found the lock/unlock hit and miss. They are mechanical lockers, and lock when they feel they need to, not you.

Eaton E Locker - I've found that it doesn't engage as instantly as an ARB. It also tends to stay locked for quite a while after unlocking it, making my Jeep hard to steer until it decides to finally unlock.

ARB - locks when you want instantly, unlocks nearly just as fast, and doesn't stay "hung" like the Eaton E-Locker does.

My vote for a locker in any rig is ARB. Bulletproof, works when it should, releases when it should.

No one in my Jeep club has ever broke an ARB.

Jim, aka Boatycall
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