This Kit has a Double Row, Single Bearing 30x60x37 DAC and both Seals and Circlip.
Can be used for Front or Rear wheel bearings, please check and Measure the Size of your Bearing.
This Repair kit is for 1 Rear Knuckle, replaces Top and Bottom Bushings.
The inner Bushing Tube is for the 10mm O.D. Bolt (other size is 12mm)
Simply remove the Nut from the upper or lower Knuckle Bolt and measure the O.D. of the threads.
It will be closer to 10mm or 12mm.