jks shackle question

Came across a bunch of lift shackle measurements, but none for the JKS 1" lift.
Does anybody have these, or know what the eye center to eye center is for the jks 1" lift boomerang shackles?
im attempting to find a shackle thats more than 5" but less than 6", and am not having much luck, if anyone has some info to help me out that would be awesome.
thanks

well sorry to clog up posts but, jks got back to me, 5 1/8 center to center, for future reference.

good info, I think I need a set of those to get all well back there! Mine are 6 in. and I need the boomerang! Thanks