I bought a used 2013 Ram 2500 with the 5.7L Hemi a couple of years ago and love the truck. It has plenty of power pulling my 7,000lb TT . I have never noticed anything lacking in the in the transmission shift points and not sure what a door blendor issue is. I have the 3.73 gears , 4x4 and it pulls my TT great. I have made a couple of trips through mountains in TN and NC and never felt like the truck was hunting for gears or anything like that. Zero issues with the truck. I bought it because I got the best deal on the truck.