1.Bolt Circle: 5 1/2  

   Bolt Size: 5/16  

   Number of Bolts: 6 

   Overall Depth: 1-13/16 

   Inside Depth: 1-1/16 

   Flange Inner Diameter: 4-9/16

2.Replacement:STEMCO 343-4095
                          Volvo 02-7023479 921010034 V8027329