A safety guard (10) for use with a wide angle joint on an agricultural power takeoff (PTO) shaft comprises a guard housing that extends around the wide-angle joint when the guard is fitted. The guard housing comprises a first housing part (12) hingedly connected to a second housing part (14) to thereby allow the first housing part (12) and second housing part (14) to move relatively open to each other and relatively closed to each other about a hinge (19), a locking member (50, 54) to lock the first housing part (12) to the second housing part (14) in a closed condition and operable to be unlocked to allow the first housing part (12) and the second housing part (14) to be moved away from each other about the hinge. Each housing part (12, 14) includes a lip (44, 46) on one end thereof, the lip (44, 46) having a profile to match a profile of an end bellows (38) to which the guard (10) is attached. The safety guard (10) may further comprise one or more internal members (28, 30, 32, 34) to engage with a groove (25) provided in an outer surface of a guard support bearing (24). This further assists in maintaining the guard in position.
