MDS is a standard on 2006+ NON MegaCab 1500s with the Hemi, and on nothing else. No 2500 or 3500 has MDS.

 

Excellent clarification.

 

Thank you very much that cleared it up quite a bit. Okay not to rack you brains too much, but two more.

First How do the automatics on the 2006+ hemi's last, under a bit of farm towing (nothing overloading, but could get heavy once in a while)?

Second, is it possible to get the in floor 4x4 shifters in the 2006+ 1500's, and not the on dash electronic ones?