This project involves the replacement of a conventional gearbox transmission system by a Hydrostatic Transmission (HST) system. The applications being considered are those of typical off-road vehicles such as forestry, construction site or mining & quarry vehicles. In these applications speed is of less importance as compared to torque and load carrying capacity. To create a small scale simulation of the performance comparison between the two transmission systems, we are selecting a buggy as our test vehicle. The same engine (Briggs & Stratton Model 20, 10H. P.), as well as wheel base and wheel track being used for both simulations. Geometrically, both vehicles will remain exactly the same and under running conditions the weight required to be hauled is being considered as 350 kg. The only variation will be in the mountings of the two different transmission systems. The above criteria enables a fair simulation as well as comparison of the two transmission systems.