I have a minty 01 Durango 4x4 with a BHG 4.7 and a wrecked 99 4x4 with a perfectly good 5.9 drivetrain. What would it take to put the 5.9 in the 4.7 truck? Would the 5.9 trans and tc have to swap too? Driveshafts? Obviously, the ECM under the hood, what about the ECMs inside the cabin?