I think in that 2008 game we were 38 39 points down very late in the 3rd but 2 late goals kept us in itCan't be bothered going back to check who it was but somebody posted earlier that they couldn't recall seeing any Richmond team come back from that kind of margin at 3 quarter time before.
I'm not sure if there's stats available for the VFL/VFA but in the VFL/AFL seniors team we've never done it. 37 points is the biggest ever against South Melbourne in 1947. Last one that's memorable in recent times was that great win against Brisbane in 2008 when Joel Bowden kicked the winner with not long left, that was only 25.
In the history of the VFL/AFL teams have only come back from 40 or more down on 6 occasions!!! 45 is the biggest!
then the master stroke Richo to full forward (was on the wing) kicks 5 in the last ??? brought the house down