Does anyone know the torque on the 4 bolts ( 2 on each side) they take a 3/4 inch socket or wrench. 1 of mine was hand loose and the other 3 seemed to be loose with a wrench and socket. Is this normal for these bolts to loosen over time ?? Not sure what you call the part but its the piece that holds the head. Kinda on the same subject does the bolts holding the rails through the bed of the truck come loose ?? if so what is the torque on that. Thanks in advance and Happy Easter everyone