To answer your Question`s ,
ECCC is Electronically Controlled Converter Clutch
This is the clutch Built into your torque converter that Allowes your Transmission to apply Lock UP. V.I.A. Electronic command.
any Brand is just fine The Important thing here is to get the correct CODE off your Origional Converter ! It is a code stamped on the converter from the factory to properly replace with the correct one ! This is Important It may consist of a few numbers and or letters in combonation.
That may be for a 4T60
The 4T60E take the ECCC
have them relook up the #`s(information on your car)