Nevermind the Allis Chalmers thought...
It's a Lely Multipower 420:
Built in Texas in 1976, the wild-looking Lely Multipower 420 was offered with a choice of two Cummins, Caterpillar, or Detroit Diesel engines. Each engine drove a set of six wheels. No drivetrain components passed through the joint in the middle of the articulated tractor, a design that was said to reduce wear and tighten the machine's turning radius. One engine could be shut down in lighter work, and the front engine could propel the vehicle while all of the energy from the rear engine was directed to a PTO-driven implement. The Multipower had a fuel tank in the front and rear.