Center Driveshaft High Speed Support SetThis Center Driveshaft High Speed Support Set prevents vibration of your center rear driveshaft, increasing drivetrain durability. Includes 1 x Assembled Center Driveshaft High Speed Support Set (Dual battery box configuration with two ball bearings factory installed) 1 x Single Battery Box Configuration Mount Features Precision manufactured from high quality molded composite material Includes two rubber shielded ball bearings Supplied assembled in