its rated for 75, so no.
when the boat turns the chines bit into the water and you get ripped around i was told, so probably when the guy was out doing like 40 he turned real sharp and the torque when then boat got ripped around cracked it, thaty and UV damage on ther plastic. Apparently if uturn eal sharp when your goign fast it bites so hard the guy would almost get thrown out of his seat.