sometimes the dealer will just swap out the complete part like the whole rear end if possible with another new truck and change the option sheet on the other truck. That is what sometime you don't get a window sticker. I had a dinged bumper once they took one off one in the lot and swapped them....wonder if the poor sucker who bought that truck saw it or if the dealer replaced it...i would guess just for the labour they would

 

Didn't realize, to many acronims and parts. I just can't believe they would make a rear end without a limited slip. Is it 100% transfer to the other wheel or will it do a 50/50 like a posi would? I wonder if that is standard on the trx4 or if I got screwed by not paying attention?

 

My truck is on LSD, great now I will have to have an intervention.

 

Standard on TRX4. I think all 3.92's are limited slip.

 

Thanks, Im gonna look up how it works.

 

A locking differential is not the same as limited slip. Limited slip diffs can allow one tire to spin and the other to barely get any traction at all in certain situations. Ask any Honda ATV Owner with a 4x4. Luckily these situations are pretty hard to get yourself into with a truck. A locking differential is different in that it does lock both wheels together when it senses slippage. Which the Dodge uses I am not sure since they call it "Anti-Spin". On my Duramax, it is a locking diff and is different than the limited slip diff I have seen in some other trucks. I think the swap option would not be as easy as you think since it would also require the speedo to be recalibrated on both trucks (which is likely software related, but who knows if it's something that can be changed at the dealer level).

 

The speedo is usually a small plastic gear drive conected to your transfer case or transmission. In the older Chevys they were color coded for the different rear ends. It would take a cresent wrench and five minutes to do the swap.



So, what did the dealer say about it???

 

These days less and less cars are using speedo cables and the conventional gears. My 63 Corvette has that setup, but I doubt the 09 Ram would these days.

 

no speedo gears anymore. it is all done with the wheel speed sensors. Only reason you would need the computer re-calibrated is if you change your tire size.