TRW Automotive JBJ377 Premium Ball Joint Always Tested to the Extreme on the Road and in the Laboratory Includes the Latest High Performance Designs and OE Quality Materials Long Lasting Dust Covers with Polished Ball Pins and Uniquely Developed Grease Low Friction Polymer or High Quality Bearings to Enhance Steering Performance Safety Matters - Superior OE Grade Chassis Parts from the Global Leader in Automotive Safety Systems that Meet or Exceed OE Performance