Took an extra day off after getting home from family vacation to work on the truck.
Got the powerglide transmission adapter installed and then bolted in the ACDelco 336-1849. I wired it up and hit the key.........................
It worked perfectly!
With the holes in the floor from the shifter and brake I could see and hear clearly. Nice smooth engagement and clean release.
GENERAL MOTORS: 88863070
ACDelco 336-1849
.