The disposal of used automobile tires has become a major environmental problem, and although there are obvious environmental reasons for recycling waste tires, to date it has not taken place because if is not cost-effective. The aim of this study was to find a more effective method of recycling used automobile tires. This was done by comparing the methods of using vulcanized crumb rubber as a filler, and investigation of the effect of surface treatment with microscopic examination of the fracture morphology of the filled crumb rubber elastomers. The experimental results indicate that crumb rubber filler end-product properties were enhanced by the chlorination of crumb rubber and by developing a crumb rubber incorporation method. We found that much improvement of the mechanical performance of the crumb rubber filled elastomer compounds could be achieved by developing a better crumb rubber incorporation technique.