On a side note, I just replaced the CFI with MPFI and found something shocking.
@L31MaxExpress was onto something with the radiator. Granted, I always believe in the best in people but I found out
some f**king idiot bypassed the radiator trans lines and used a piece of rubber hose to route the lines into each other. I was and still am blown away. The sad part is, it looked like it was done a while ago and unfortunately no one throughout the years caught it, myself included. Now educating myself on transmission cooling lines, the issue was a big slap in the face. I am not sure why the idiot bypassed the radiator but after talking to my dad it was probably done back in 2004-2005 when the second 60e died. We got stuck in a little town with a transmission shop and my dad told them that he just "needed to get home". I'm assuming I've been running cooler-less ever since. Without a gauge, I'm positive that's why the 3rd 60e did NOT last long. I admit to my naive-ness for sure. Don't know who's the bigger idiot here... me or the guy who bypassed the radiator. I really should've caught this earlier but nothing I can do now but fix it. New radiator will be on order and lines will be connected shortly after. Then I will decide if the 40k cooler is necessary.