Why not just fit a transmission cooler and cool it a day. Most have them already. My SS came stock with one, I removed it after I fitted my ramjet and it was undriveable the transmission overheated all the time. So I just fitted a newer one lower down and problem solved temps are always well within range. The main thing with transmission stuff is not to let the tranny oil temps exceed a certain range or it stuffs the oil....... and then the transmission.