Dodge NP231D HD t-case for sale. Very good mechanical condition, shifts nice, no slop, and very clean. I got it several years ago but ended up not using it as I needed a mechanical speedo output which this unit doesn't have. It's from a 2000 Durango. I believe the HD indicates its a heavy duty (wide chain) t-case. The T-case is located in Chesapeake, VA, near Norfolk. $300