The bucket is fine. The design to attach to the back of the forks lacks safety features. The pins do not provide a secure bracing and the bucket could slide out when tilted downward as is pouring the aggregate. Please note that the design of the back of the fork is not always at 90 Deg., when the forks have this design, the pin attachment does not provide a secure wrap-around. You can design other quick disconnect attachments as extra components to complement your current design. I also noticed the two side ears or handles in the back of the bucket may not hold the weight of the aggregate when we tilt down the bucket with a full load of aggregate. These handles are very thin and the weld might not sustain all the stresses as the bucket is exposed to hours of work. Another issue is that the pockets where the fork entered, do not fit forks with longer lengths. I do not recall if you listed the length of the fork pockets in your description.