Add drivetrain rigidity and precision to your Subaru with our PERRIN Performance Subframe and Differential Lock Down System. The subframe lockdown kit consists of two urethane bushings, two metal sleeve washers and two bolts. They work together to solidify and lock the rear subframe in place, eliminating all driveline slop and that annoying thud from first to second gear. As a bonus the Subframe Lockdown Kit includes differential bushings that keep the rear diff from shifting around during spirited driving. All this combines to create a real connected and precise feel for the driver.