Couple other threads similar to this. I have never seen it but someone mentioned a Suzuki diesel that would be a close fit. A lot of fabrication would be required as well as some tuning of the ecu (not to run the diesel but to keep everything else on the truck that depends on the ecu functioning correctly while not showing a billion codes due to the engine missing) and trip to the liquor store every single day. I have thought about it and really would like to do it but...I can't bring a project like that upon myself. Oh and trying to keep the 4wd would be another headache in itself, assuming that any of it would be possible. If your truck is a project truck already then I say go for it and do a write-up so we don't have to cuss and scream until the neighbors call the cops .