27/04/2015 · Before he started, he read every online forum about swapping these engines that he could find. His truck was a 2001 Kingclima Ranger 4×4 with 4.0-liter backed by a M50D-R1 HD manual trans. He pulled out the engine, then stripped the wiring harness down to just what he needed to make the new engine start, run, and make the gauges work.