Before developing a central reducer of the drive intermediate axle, it is necessary to choose its kinematic scheme to define the most important truck properties. Examples prove that a type of gearing, kinematic scheme and mutual position of gear or worm wheels of the central reducer has impact on the mass of the intermediate axle, placement of the engine and brake mechanisms, and truck configuration as a whole. They also influence on a possibility to use a long-stroke suspension, provide a differential connection between axles, and a torque transfer to the next axle.The work analyzes various schemes of the intermediate central reducers using one or two pairs of gear or worm wheels. It defines the ways to provide normal operating conditions for the engine drive line of the non-intermediate axle. The paper shows that, in most cases, the two-shaft transfer cases with a coaxial or non-coaxial arrangement of the output shafts, connected in front of or behind a conical or hupoid reducer, allows implementation of intermediate reducers.According to a set of properties, for the trucks equipped with a dependent or independent long-stroke suspension, the most rational is the hub-reduction final drive with helical-bevel and conic central reducers, respectively, in intermediate and non-intermediate axles. To apply double helical-bevel central reducers in intermediate and non-intermediate axles is expedient if it is necessary to ensure unification of crankcase parts of axle, improve protection, and raise a driveshaft durability of the non-intermediate axle drive.The paper presents the most rational schemes for three drive axles to be group-driven. Creating a three-axis group-driven cart is possible to implement by setting one more axle in front of the two-axis cart, with central reducer of this axle having the same scheme, as a reducer in the intermediate axle of the two-axis cart. Thus, in case of differential connection between axles and identical vertical loads towards the axles in the central reducer of the first axle of the tridem drive axles it is necessary to use the asymmetrical inter-axial differential, unlike the central reducer of the second intermediate axle of the same cart where the symmetric inter-axial differential is set.