How do I find out if my 2006 Dodge Ram SLT 4X4 has a limited slip differantial, without pulling the cover off. I am going to change the gear oil in the front and back diff. I see that it calls for an additive in the rear if it has a limited slip. I would prefer not to buy it unless I have to.

 

I think it is on a tag on the rear axle. I will move this thead to the third generation Ram section as they will help you,
FF

 

the sticker in your glovebox will tell you

 

^yep, sticker in glove box will say anti spin...

 

Why not just go out in some grass of loose dirt and spin the tires for a sec to check and see?

 

I searched the rear end up and down. No tag or etch. Also I do not have any stickers in the glove box. ?

 

Request a build sheet from dodge online or at your local dealer.

 

Jack up the rear axle and spin one tire. If the other tire spins the same way, you have a limited slip diff, if it spins the other way, you have an open diff.

 

Like I said, go out there and spin the tires in dirt and see if you have one track or two.

 

Often in loose dirt, an open rearend will spin both.
Here is the easiest way tha always works for me.
Chalk the front tire, put the truck in neutral, jack up one rear tire.
Try to spin the wheel by hand, if it and the drive shaft spin, it is open, if it is locked like the brake is on, it is a LS and the clutches are keeping the axle from turning.
I can actually torque the lug nuts on my Ram and Mustang this way because the clutches work as they should.