Is this the same as the Master Cylinder? Im getting different prices and components with different companies. One place wants $747.00 which includes Pressure Plate,Disk,release bearing, and Cylinder clutch Acuator with a 2 yr warranty, while gm wants over $900. Another place wants $552 with the master. Any advice here would be appreciated.

 

thats the piece on outside of trans that hooks the line from the master to the line on slave cylinder