4L70 and 4L75. They are upgraded evolution of the 700R4/4L60/4L65
you can do all the upgrades in the world to a 4l60 but it’s still a 4l60 at the end of the day.
they’re ok for stock power 4.8/5.3/6.0 stuff I always get rebuit ones with warranties though. If that tells you anything.
more for the ease of the swap though since the AA adapter actually works, ask @tmxmotorsports about his 4l80e/splitcase adapter experience
I like that 4l60 simulator pedal.