I recently bought an 08 Super Glide. The woman I bought it from lowered it. I want to raise it back up. I can get a good buy on a pair of Progressive 412 shocks that are 13.5" center to center. The standard shock for my bike is 12" will the 13.5" fit?

 

You should be fine IMHO. Although the longer shocks are 1.5" more than the 12", some of that extra length will be used up when you sit on your bike. So your riding height will be higher than with the 12", but not 1.5" higher.

 

I just measured my stock shocks while the bike is sitting on the side stand. With the preload at max they measured 12.6 inches. If you don't see any clearance issues they will fit. My bike is an 07 FXD.