On the 67 vert I am working on the 400 hood does not stay up all the way. The springs have 28 coils on them. I also have just one spring that has 26 coils on it. So which one am I supposed use or are my 28 coil hinge springs just worn out. Classic ind. shows just one spring for all models so I don't know what the 26 coil spring goes to. I would really appreciate some help one this. Eldon