Can you put a Cummins engine in a Ford Bronco? Yes!
A 6bt 5.9 Cummins engine will fit in your full size Ford Bronco, but if you have not already beefed up your front suspension you will want to do so. A minimum fix is a good set of air bags for your coil springs. Other options, if not already done, include a solid front axle or a heavy suspension lift.
The full size Ford Bronco takes basically the same Ford Cummins diesel conversion hardware as the F Series Ford pickups of the same year. As far as adapting to a Ford transmission, we provide our Ford Cummins Adapter Plates that allow you to adapt a Ford big block or diesel style transmission to a Cummins engine.
click to see: ADAPTER PLATES