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Powertrax is a leading manufacturer of traction-adding differentials for the light truck, sport utility, and performance street rod market. Our focus has always been on offering quality products that provide maximum traction, street-ability, and easy installation. Whether you want the smooth and quiet operation of Powertrax® Traction Systems, our latest design achievement, or the excellent value of the Lock-Right Full Locker, our motto is simple: maximum traction!