I bought my D150 new in 1980 when I was 17 yrs old, right after graduating HS. It began as a slant/6 truck with 3 speed overdrive and was repowered in 1992 with 318 w/727 AT. I sold it once, but fortunately, I was able to get it back 6 years later. Upon which I started a complete rebuild and repaint, completed that in 2005. May 2022, I replaced the 318 with a 360 w/TCI 727. I love my truck and will never lose it again.