Which Patrol? ZD/TD/TB is a different flange pattern, different input socket, and here's the showstopper - driver side drop rather than passenger side drop.
RD/RB - same flange pattern and input socket, but still driver side drop.
yeah itll be a clunking bang sound. theres a couple vids of mine around that you can hear the noise they make. Patrol case is physically bigger. cant comment on the different flange patterns tho as i used a zd30 gbox