Prime Choice Auto Parts TRK3577 Outer Tie Rod End High quality, brand new tie rod ends Powdered metal lower bearings for improved assembly strength Heat-treated, precision finished ball ends for consistent torque and smooth operation throughout the entire range of driving Case-hardened, full-ball type stud offers tighter overall fit and improved stability for a better replacement Advanced bearing technology provides smoother steering, improved return-to-center, and eliminates endplay