Mr. Transmission / Milex of Buford, just north of Pleasant Hill Road, specializes in transmission repair including free performance checks, computer diagnostics checks, internal inspection and repair, oil changes, tune ups, brakes, CV joints, axles and clutch repair. Transmissions are known to be the most complicated system in your car, and your car requires experienced, knowledgeable technicians with the expertise that Mr. Transmission provides to diagnose and repair it.