A-833 Lube help

7.0 pints US is listed in the 69 FSM, for short tails.

Mine woks best with 100% ATF, but I changed to 50% 80/90 gear oil, cuz I felt so sorry for the cluster pin, the highest wearing item in the box, when abused like I do.
In the 273-vert, I'd run 100% DExtron, cuz the wear on the pin will likely not be an issue.
And that's my opinion.......But I agreed with d55dave in post #6