I too am confused. Some places that offer both the 912 & 913 springs say the 913 gives higher lift than the 912. Other places state the 912 gives higher lift than the 913. The link in the posting above says the 913 gives 1.5 inches of lift, and the 912 gives 1.5-3 inches of lift. The 919s I cannot even find for sale anywhere, although I have heard that they give the most lift of all. Is there one source that tells the correct lift given by all three types of springs?? Is there anyplace that sells all three type of OME springs???

Thanks for the help,
Dave