I have an odd question but going to throw it out there I have a 64 f250 4x4 I'm going to be upgrading to a 79 Dana 60 which uses 3 inch wide springs. My truck currently has 2.5 inch wide springs. So the plan is this I want to lift the truck 6 inches using the 99 super duty springs in front I will be making new spring mounts and shackles for the front seeing as though it's almost a bolt in upgrade for the 67-79 f250 I'm looking to find out where the spring mounts on the frame I need to know the distance between the top of the swing shackle bolt hole and the front fixed mount hole . Also if it's possible how the axle centerline fits in there is it directly center of the spring, or longer in one direction or the other ( front or rear)

Any help would be appreciated

Thanks kyle

 

Anyone have an idea?