What did you do to your truck today.The 3rd chapter

[pjmoreland]

Originally Posted by '68OrangeSunshine

I've heard 700-R4s are tricky. Even more so, a computerized successor in an analog truck.
I have thought about a stoutly-rebuilt TH700-R4 to replace the TH350 in White Fang, my '67 K/10 Suburban, but that's a long way off.

It was a fair amount of work to get the torque converter lockup to work to my liking. I tried various combinations of vacuum switches and time-delay relays, but ended up building an Arduino-based electronic controller for it based on speed and manifold vacuum level. It is documented in this thread:

https://67-72chevytrucks.com/vboard/...d.php?t=822382