I am trying to fit a 9500lb Black Raptor winch to an ARB Deluxe Front Recovery Winch Bumper but need to rotate the clutch housing. With all 10 Allan bolts removed it still won’t rotate - any suggestions please?

New member based in Poole with a 2005 Jimny which I have refurbished for my great nephews. I had the Black Raptor winch and hidden support bracket stolen on the 4th Feb. They missed 2 brackets and the remote despite destroying the door lock to get in and ransacking the car. I am now fitting replacem...