Fred Williams from Dirt Every Day recently did a video reviewing a Quigley 4x4 2500 Express van with the new 2.8 Duramax & 8 speed automatic . He seemed very impressed with it's ability to move a 3/4 ton van and this made me wonder if other smaller displacement diesel swaps have ended up in the GMT400 platform. Particularly into 3/4 tons. Considering how simply "adequate" my thirsty 350 is, I've always had an interest in a diesel repower for my 98 K2500. A setup prioritized for reliability and fuel economy with just enough power to be reliable as a camping/kayaking and domestic-use truck.