<p>The advanced composite materials development for automotive power transmission system systems intentions to enhance performance, durability, and thermal stability while reducing weight and noise. Achieving this, hybrid composite materials offer an effective balance between mechanical strength and frictional efficiency. Polysulfide is the most used polymer for it’s easy to blend apply to surfaces, good corrosion and wear resistance making it a good choice for power transmission system. Polysulfide high ductility led to the need to be blended with other polymer and reinforcing it with fiber to increase strength. In this research, a polymer composite material was prepared from two polymers (Polysulfide resin- Resole resin) and reinforced by fiber glass, where was weight ratio for polysulfide (50 wt %) and for resole was (30 wt %) and the type of the fiber glass used was plain woven (E-Glass) fibers at angle direction (0˚/45˚) with volumetric fraction (20%) where a hand lay-up method was used for prepare. Mechanical properties (Tensile strength, Impact strength and Flexural strength) were evaluated for the blend (Polysulfide and Resole) only and for a polymer composite material reinforced by fiber glass to study the mechanical properties of the composite and its performance when power transmission system is manufactured. Experimental results showed that 74%, 745%, 191% enhancement in tensile strength, impact strength and flexural strength of the composite compared with the blend. These results showed that this composite is a good choice for power transmission system manufacturing.</p>