Im in the process of rebuilding the transmission in my 97 Ford Ranger 4WD 4.0 its a 5R55E. What is the best source for a replacement torque converter ? I am replacing the EPC and TCC solenoids, The EPC I'm using is a Borg Warner brand EPC, Do these come already calibrated to drop in and go or is there an adjustment or set up procedure since they are adjustable ? Any advice greatly appreciated.