About us. We are a full-service drive train center that specializes in building drive shafts for vehicles and equipment of all makes and models and complete automotive differential overhauls, including. Original Equipment. Race Applications. Rock Crawlers. Agricultural Equipment. PTO Shafts. Differentials. Posi-locker Installs. Mechanical aptitude / skills / knowledge. High school graduation / GED or equivalent work experience. Valid Driver’s lic...