i have been working on a 1967 kaiser jeep m715 army truck for several years. it has a 5.9 cummins diesel. 5 speed trans. and modern axles from a chevy 4x4. it is a daily driver and is very reliable. i have taken it on several long camping trips in the past few years[2000 miles round trip] currently in the process of installing a fiberglass work topper that will be insulated and rigged as an overland camper truck. pics on the way