Either way you go, With new bolts or with out, Be sure and "Torque" the bolts like you would on a car. That is tighten them evenly then go back and Retorque them one at a time ACROSS from each other. Alternating from one side to the other until they are all torqued the same. I have found if you HOLD the torque and count to ten when you do the final tightening on EACH bolt they Will not come loose.[8D] ( I got this hint from an old Boat racer)