I would figure that your setup is the same as mine. I have Limited Slip, which I belive is called Trac-Loc. See the below quote I pulled from a Dodge site:
"The 9 1/4" axle housing consists of a cast iron differential carrier center section with axle tubes extending from the center section sides. The axle tubes are pressed into the differential housing and then welded into position to form a one-piece axle housing.
The differential case is a one-piece design. The differential pinion mate shaft is retained by a threaded pin. Differential bearing preload and ring gear backlash are set by a collapsible spacer (crush sleeve) on the pinion.
An option Trac-Lok limited slip differential uses a one-piece differential case, the same internal components as the standard open differential, and an additional pair of clutch disc packs to transfer wheel torque under poor traction conditions."
This I think is in the new Ram's as well.
It is a limited slip differential. It is not the best one out there, but isn't bad for a large truck designed to be a car <IMG SRC="/board/images/smilies/icon_smile.gif"> It also uses clutches so it will wear out and need to be rebuilt to get full use out of it. It goes from being a limited slip to a open diff as the clutches go.
I blew mine out towing a wet concrete trailer (the 1 yard, haul it yourself type) taking a turn. All three of the keepers broke off on one side and one on the other side of the clutch packs and then then clutch parts broke loose and it ended up chewing up an end bearing and some seals as parts made their way down the tubes.
Also, it did okay offroad, but did lack when doing anything more than a Subaru could tackle <IMG SRC="/board/images/smilies/icon_rolleyes.gif">
If you want to keep good manners, but still want a limited slip,I have heard nothing but good about the Auburn version. Uses gears instead of clutches to it won't wear out.
As for switchable lockers, the ARB is the most popular and least expensive. The only other option that I know if the OX Locker and it is cable operated vs air (ARB). It is also an extra $150 (about the same as an ARB compressor required for their locker, unless you have another source of air already) and additional labor to install I hear. Not too sure about that though. http://www.oxtrax.com
I highly recommend an ARB for the front. Less wear and tear, no drawbacks on the street like even an LSD can have.
If money was not an issue I would install a Detroit in the back (money does not matter, then buying new tires 10-20,000 miles earlier than you normally would shouldn;t matte right?).
If you want to make an investment an ARB locker is the best but it is expensive. I've learned to live with my limited slip off road, its limited but its better than an open differential. Lockers and spools have bad on road manners so I wouldn't use one unless you go wheelin more than you drive on the road.
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