Don't get me wrong the 4bt and 6bt are very reliable engines other than that they leak about as much oil as a Detroit. Still feel that they are to heavy for a Jeep, for wheeling with big ledges and what not a Jeep is on the heavy side to begin with. An aluminum V8 or V6 is better suited for what I want. The place I work for has a bunch of sprinters and even though they are not as reliable as a Cummins they do pretty well more than a few are rocking between 100.000 to 200.000 miles on them.
Now a 6bt in an older pickup is a mighty sweet setup as long as the roll pins do not rattle out of the timing cover