My FB is a 68 with a build date of Aug 67. The replacement hinges for a 67-68 call for the hinge with the S spring. However, my hinges have the coil spring similiar (but different) than the 65-66 years. Will the replacement S spring bolt right up? Or do I need to find a good early 68 hinge. Any assistance would be helpful since the car is going to the body shop on Sunday I have to have this resolved.