Single and tandem rear axles were available in many wheelbases. Chassis cabs were produced in different wheelbases for specialty bodies. The Schoolmaster had longer wheelbases available than the Loadstar, otherwise they were mechanically the same. The exception was early model tandems, which shared their separate wheelbases. Technically all were identical, but with differing wheelbases and equipment levels. The Unimog 435 was built with two different wheelbases, and . The BB had longer wheelbases of 131.5 or 157 in. They were available in long and extra long wheelbases, and with or without front winches. Engines with fixed wheelbases are more difficult to convert. Both were offered in wheelbases ranging through 1942. Several different wheelbases (115, 119, 131, 132, 149, 156, or 164 inches) were also offered. A variety of wheelbases were provided ranging from . All 4MATIC models were made in short and long wheelbases. Two door models rode on wheelbases and four-door on . Plans called for three different wheelbases&colon; 109.0 in.