EZ Flex Dexter broken suspension bolt

Test that broken bolt by trying to grease it, maybe the zerk is plugged. It sure looks like it was never greased. Twice a year isn't much unless there is very little mileage. The wet bolt system does not distribute grease well, if at all. Grease should be forced thru the hole to the load side of the bolt, but the hole may not have been installed there and then even if it is, grease may not flow since the bolt and bushing forms a perfect seal. Some jack up the trailer in order to open that seal and then grease. If a groove is cut into the bushing it will help distribute the grease and prevent that perfect seal. The companies that make wet bolts should have enough sense to keep the hols very small, but that is harder to do, thus the holes large enough to cause weakness.