Need Opinions- 2002 Dodge Ram 2500 CTD

these trucks transmissions always seem sluggish unless it is built. u will know if its slipping. but they have a relaxed shift to them stock. do a 1/4 1/2 throttle drive from 20 mph to 55 and u will know right then about the trans. also take the tube off that goes to the turbo and check the turbo shaft for side to side play and in and out play. of course not running ;) I looked at the same truck with 90,000 on it price was 20,000 in 2012