I am getting ready to install my transgo and torque converter this weedend and was told that there is a part that is plastic and needs to be replaced with a corvette alumminum one, but I can't seem to find out exactly what that part is or where to find one. I think it is either a actuator piston or servo piston or something. Can anyone help?

 

ttt

 

Can't find the part number... Maybe this will help?

http://www.impalassforum.com/tech/dr...nsgo_servo.htm