I just installed a new-to-me '57 borg warner overdrive in my '57 with a 235. I had a B/W overdrive in it previously.
In the old one, anytime I wanted to shift out of overdrive all I had to do was push the pedal to the floor to activate the switch and it would shift out at that moment.
With my new one, I have to let up off the gas a bit and then stomp the pedal to the floor and only then will it disengage. If I push the pedal slowly to the floor it doesn't disengage. I've checked, and the switch is being pushed at full throttle, so kicking it down is not simply pushing the throttle further. Also, sometimes, but not all the time, if I'm driving in overdrive, I can let up off the throttle gently and if I push it down gently again, it will shift out of overdrive.
Which of these is normal operation for one of these Overdrives?
Thanks,
Brandon