A local building mover used to have something similar (might still have it for all I know) They would move 200 foot long chicken barns with it and needed it to turn corners some of which were 90 degree corners on relatively narrow gravel roads in the country. They took two tandem trucks, stripped them down to the chassis and partial drivetrain and slaved one to the other side by side under/inside the building at the back end and drove them with hydraulic motors powered by a small engine instead of the truck engines. One driver sat on one of them and drove both. The first time I saw them on a building move was quite interesting!