eng Science and Education Publishing American Journal of Mechanical Engineering 2328-4110 2015-12-17 3 6 240 243 10.12691/ajme-3-6-17 AJME20153617 article Silvia Medvecká-Beňová silvia.medvecka@tuke.sk 1 František Trebuňa 2 Peter Frankovsky 3 Department of Construction, Automotive and Transport Engineering, Faculty of Mechanical Engineering, Technical University of Košice, Košice, Slovakia Department of Applied Mechanics and Mechanical Engineering, Faculty of Mechanical Engineering, Technical University of Košice, Košice, Slovakia Department of Mechatronics, Faculty of Mechanical Engineering, Technical University of Košice, Košice, Slovakia The paper deals with the optimization of the centre differential heavy truck without a wheel reductions. Under optimization in this case means customizing cabinet differential type designed for easy gear to withstand a heavy load of new gear. Critical structural adjustment of high-voltage areas must be such as to reduce tensions. The basis for this optimization is the results of task solution by finite element method (FEM). http://pubs.sciepub.com/ajme/3/6/17/ajme-3-6-17.pdf centre differential stress FEM