On a Land Rover im doing an engine and gearbox conversion on will it need drive shaft loops? The engine and gearbox have been changed out for an isuzu unit, the orginal transfer box has been adapted to the isuzu gearbox in its original position with standard driveshafts. The land rover engine was a 2.5 turbo diesel 112hp, the isuzu is 3.9l turbo diesel 130hp. Will also have a 50mm body lift.