i unlocked the middle bolt and then i started to try and at least loosen each bolt before i totally unscrewed it all and took the top off. problem is, i cant loosen any of the bolts. it seems as if the previous owner screwed it back heavily cuz i cant get any of it unscrewed. i only got the left rear loosened and thats it. i even tried wd-40 to loosen some of them but still futile. plz help...