This is a wierd question but I hope someone can help me out. I bought my 68 Firebird and the rear leaf springs hang down too low. The previous owner made his own set of rear leaf spring shackles and I think he made them too long. Does anyone know what the distance between the bolt holes on the shackle are supposed to be? It might save me some time and money if I knew this information. Thank you in advance.

JR

 

Its in the 3-4" zone