I have a 2002 F150 FX4 with the 4r70w automatic transmission. The cooler lines have rotted out and need to be replaced. I have purchased the three lines....transmission to radiator, radiator to aux cooler, and the return line from the aux cooler to the transmission. The problem i'm having is that the aux cooler has this push-in style fitting for the two existing lines. The new lines have a threaded flare-end fitting. I have searched 4 different automotive stores and I cannot find any sort of adapter fitting for the new lines. Any help would be greatly appreciated!!! Thank You

 

Sounds like your got the wrong style replacement lines. Good luck!